text: /*
     +----------------------------------------------------------------------+
     | Zend Engine                                                          |
     +----------------------------------------------------------------------+
     | Copyright (c) Zend Technologies Ltd. (http://www.zend.com)           |
     +----------------------------------------------------------------------+
     | This source file is subject to version 2.00 of the Zend license,     |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.zend.com/license/2_00.txt.                                |
     | If you did not receive a copy of the Zend license and are unable to  |
     | obtain it through the world-wide-web, please send a note to          |
     | license@zend.com so we can mail you a copy immediately.              |
     +----------------------------------------------------------------------+
     | Authors: Andi Gutmans <andi@php.net>                                 |
     |          Zeev Suraski <zeev@php.net>                                 |
     |          Dmitry Stogov <dmitry@php.net>                              |
     +----------------------------------------------------------------------+
  */
  
  #define ZEND_INTENSIVE_DEBUGGING 0
  
  #include <stdio.h>
  #include <signal.h>
  
  #include "zend.h"
  #include "zend_compile.h"
  #include "zend_execute.h"
  #include "zend_API.h"
  #include "zend_ptr_stack.h"
  #include "zend_constants.h"
  #include "zend_extensions.h"
  #include "zend_ini.h"
  #include "zend_exceptions.h"
  #include "zend_interfaces.h"
  #include "zend_closures.h"
  #include "zend_generators.h"
  #include "zend_vm.h"
  #include "zend_dtrace.h"
  #include "zend_inheritance.h"
  #include "zend_type_info.h"
  #include "zend_smart_str.h"
  
  /* Virtual current working directory support */
  #include "zend_virtual_cwd.h"
  
  #ifdef HAVE_GCC_GLOBAL_REGS
  # if defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(i386)
  #  define ZEND_VM_FP_GLOBAL_REG "%esi"
  #  define ZEND_VM_IP_GLOBAL_REG "%edi"
  # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__x86_64__)
  #  define ZEND_VM_FP_GLOBAL_REG "%r14"
  #  define ZEND_VM_IP_GLOBAL_REG "%r15"
  # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__powerpc64__)
  #  define ZEND_VM_FP_GLOBAL_REG "r28"
  #  define ZEND_VM_IP_GLOBAL_REG "r29"
  # elif defined(__IBMC__) && ZEND_GCC_VERSION >= 4002 && defined(__powerpc64__)
  #  define ZEND_VM_FP_GLOBAL_REG "r28"
  #  define ZEND_VM_IP_GLOBAL_REG "r29"
  # elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__aarch64__)
  #  define ZEND_VM_FP_GLOBAL_REG "x27"
  #  define ZEND_VM_IP_GLOBAL_REG "x28"
  # endif
  #endif
  
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  # pragma GCC diagnostic ignored "-Wvolatile-register-var"
    register zend_execute_data* volatile execute_data __asm__(ZEND_VM_FP_GLOBAL_REG);
  # pragma GCC diagnostic warning "-Wvolatile-register-var"
  #endif
  
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  # define EXECUTE_DATA_D     void
  # define EXECUTE_DATA_C
  # define EXECUTE_DATA_DC
  # define EXECUTE_DATA_CC
  # define NO_EXECUTE_DATA_CC
  #else
  # define EXECUTE_DATA_D     zend_execute_data* execute_data
  # define EXECUTE_DATA_C     execute_data
  # define EXECUTE_DATA_DC    , EXECUTE_DATA_D
  # define EXECUTE_DATA_CC    , EXECUTE_DATA_C
  # define NO_EXECUTE_DATA_CC , NULL
  #endif
  
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  # define OPLINE_D           void
  # define OPLINE_C
  # define OPLINE_DC
  # define OPLINE_CC
  #else
  # define OPLINE_D           const zend_op* opline
  # define OPLINE_C           opline
  # define OPLINE_DC          , OPLINE_D
  # define OPLINE_CC          , OPLINE_C
  #endif
  
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  # pragma GCC diagnostic ignored "-Wvolatile-register-var"
    register const zend_op* volatile opline __asm__(ZEND_VM_IP_GLOBAL_REG);
  # pragma GCC diagnostic warning "-Wvolatile-register-var"
  #else
  #endif
  
  #define _CONST_CODE  0
  #define _TMP_CODE    1
  #define _VAR_CODE    2
  #define _UNUSED_CODE 3
  #define _CV_CODE     4
  
  typedef int (ZEND_FASTCALL *incdec_t)(zval *);
  
  #define get_zval_ptr(op_type, node, type) _get_zval_ptr(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
  #define get_zval_ptr_deref(op_type, node, type) _get_zval_ptr_deref(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
  #define get_zval_ptr_undef(op_type, node, type) _get_zval_ptr_undef(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
  #define get_op_data_zval_ptr_r(op_type, node) _get_op_data_zval_ptr_r(op_type, node EXECUTE_DATA_CC OPLINE_CC)
  #define get_op_data_zval_ptr_deref_r(op_type, node) _get_op_data_zval_ptr_deref_r(op_type, node EXECUTE_DATA_CC OPLINE_CC)
  #define get_zval_ptr_ptr(op_type, node, type) _get_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
  #define get_zval_ptr_ptr_undef(op_type, node, type) _get_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
  #define get_obj_zval_ptr(op_type, node, type) _get_obj_zval_ptr(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
  #define get_obj_zval_ptr_undef(op_type, node, type) _get_obj_zval_ptr_undef(op_type, node, type EXECUTE_DATA_CC OPLINE_CC)
  #define get_obj_zval_ptr_ptr(op_type, node, type) _get_obj_zval_ptr_ptr(op_type, node, type EXECUTE_DATA_CC)
  
  #define RETURN_VALUE_USED(opline) ((opline)->result_type != IS_UNUSED)
  
  static ZEND_FUNCTION(pass)
  {
  }
  
  ZEND_API const zend_internal_function zend_pass_function = {
  	ZEND_INTERNAL_FUNCTION, /* type              */
  	{0, 0, 0},              /* arg_flags         */
  	0,                      /* fn_flags          */
  	NULL,                   /* name              */
  	NULL,                   /* scope             */
  	NULL,                   /* prototype         */
  	0,                      /* num_args          */
  	0,                      /* required_num_args */
  	NULL,                   /* arg_info          */
  	NULL,                   /* attributes        */
  	ZEND_FN(pass),          /* handler           */
  	NULL,                   /* module            */
  	{NULL,NULL,NULL,NULL}   /* reserved          */
  };
  
  #define FREE_VAR_PTR_AND_EXTRACT_RESULT_IF_NECESSARY(free_var) do {			\
  	zval *__container_to_free = EX_VAR(free_var);							\
  	if (UNEXPECTED(Z_REFCOUNTED_P(__container_to_free))) {					\
  		zend_refcounted *__ref = Z_COUNTED_P(__container_to_free);			\
  		if (UNEXPECTED(!GC_DELREF(__ref))) {								\
  			zval *__zv = EX_VAR(opline->result.var);						\
  			if (EXPECTED(Z_TYPE_P(__zv) == IS_INDIRECT)) {					\
  				ZVAL_COPY(__zv, Z_INDIRECT_P(__zv));						\
  			}																\
  			rc_dtor_func(__ref);											\
  		}																	\
  	}																		\
  } while (0)
  
  #define FREE_OP(type, var) \
  	if ((type) & (IS_TMP_VAR|IS_VAR)) { \
  		zval_ptr_dtor_nogc(EX_VAR(var)); \
  	}
  
  #define FREE_OP_VAR_PTR(type, var) \
  	FREE_OP(type, var)
  
  #define CV_DEF_OF(i) (EX(func)->op_array.vars[i])
  
  #define ZEND_VM_STACK_PAGE_SLOTS (16 * 1024) /* should be a power of 2 */
  
  #define ZEND_VM_STACK_PAGE_SIZE  (ZEND_VM_STACK_PAGE_SLOTS * sizeof(zval))
  
  #define ZEND_VM_STACK_PAGE_ALIGNED_SIZE(size, page_size) \
  	(((size) + ZEND_VM_STACK_HEADER_SLOTS * sizeof(zval) \
  	  + ((page_size) - 1)) & ~((page_size) - 1))
  
  static zend_always_inline zend_vm_stack zend_vm_stack_new_page(size_t size, zend_vm_stack prev) {
  	zend_vm_stack page = (zend_vm_stack)emalloc(size);
  
  	page->top = ZEND_VM_STACK_ELEMENTS(page);
  	page->end = (zval*)((char*)page + size);
  	page->prev = prev;
  	return page;
  }
  
  ZEND_API void zend_vm_stack_init(void)
  {
  	EG(vm_stack_page_size) = ZEND_VM_STACK_PAGE_SIZE;
  	EG(vm_stack) = zend_vm_stack_new_page(ZEND_VM_STACK_PAGE_SIZE, NULL);
  	EG(vm_stack_top) = EG(vm_stack)->top;
  	EG(vm_stack_end) = EG(vm_stack)->end;
  }
  
  ZEND_API void zend_vm_stack_init_ex(size_t page_size)
  {
  	/* page_size must be a power of 2 */
  	ZEND_ASSERT(page_size > 0 && (page_size & (page_size - 1)) == 0);
  	EG(vm_stack_page_size) = page_size;
  	EG(vm_stack) = zend_vm_stack_new_page(page_size, NULL);
  	EG(vm_stack_top) = EG(vm_stack)->top;
  	EG(vm_stack_end) = EG(vm_stack)->end;
  }
  
  ZEND_API void zend_vm_stack_destroy(void)
  {
  	zend_vm_stack stack = EG(vm_stack);
  
  	while (stack != NULL) {
  		zend_vm_stack p = stack->prev;
  		efree(stack);
  		stack = p;
  	}
  }
  
  ZEND_API void* zend_vm_stack_extend(size_t size)
  {
  	zend_vm_stack stack;
  	void *ptr;
  
  	stack = EG(vm_stack);
  	stack->top = EG(vm_stack_top);
  	EG(vm_stack) = stack = zend_vm_stack_new_page(
  		EXPECTED(size < EG(vm_stack_page_size) - (ZEND_VM_STACK_HEADER_SLOTS * sizeof(zval))) ?
  			EG(vm_stack_page_size) : ZEND_VM_STACK_PAGE_ALIGNED_SIZE(size, EG(vm_stack_page_size)),
  		stack);
  	ptr = stack->top;
  	EG(vm_stack_top) = (void*)(((char*)ptr) + size);
  	EG(vm_stack_end) = stack->end;
  	return ptr;
  }
  
  ZEND_API zval* zend_get_compiled_variable_value(const zend_execute_data *execute_data, uint32_t var)
  {
  	return EX_VAR(var);
  }
  
  static zend_always_inline zval *_get_zval_ptr_tmp(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	ZEND_ASSERT(Z_TYPE_P(ret) != IS_REFERENCE);
  
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_var(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_var_deref(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	ZVAL_DEREF(ret);
  	return ret;
  }
  
  static zend_never_inline ZEND_COLD zval* zval_undefined_cv(uint32_t var EXECUTE_DATA_DC)
  {
  	if (EXPECTED(EG(exception) == NULL)) {
  		zend_string *cv = CV_DEF_OF(EX_VAR_TO_NUM(var));
  		zend_error(E_WARNING, "Undefined variable $%s", ZSTR_VAL(cv));
  	}
  	return &EG(uninitialized_zval);
  }
  
  static zend_never_inline ZEND_COLD zval* ZEND_FASTCALL _zval_undefined_op1(EXECUTE_DATA_D)
  {
  	return zval_undefined_cv(EX(opline)->op1.var EXECUTE_DATA_CC);
  }
  
  static zend_never_inline ZEND_COLD zval* ZEND_FASTCALL _zval_undefined_op2(EXECUTE_DATA_D)
  {
  	return zval_undefined_cv(EX(opline)->op2.var EXECUTE_DATA_CC);
  }
  
  #define ZVAL_UNDEFINED_OP1() _zval_undefined_op1(EXECUTE_DATA_C)
  #define ZVAL_UNDEFINED_OP2() _zval_undefined_op2(EXECUTE_DATA_C)
  
  static zend_never_inline ZEND_COLD zval *_get_zval_cv_lookup(zval *ptr, uint32_t var, int type EXECUTE_DATA_DC)
  {
  	switch (type) {
  		case BP_VAR_R:
  		case BP_VAR_UNSET:
  			ptr = zval_undefined_cv(var EXECUTE_DATA_CC);
  			break;
  		case BP_VAR_IS:
  			ptr = &EG(uninitialized_zval);
  			break;
  		case BP_VAR_RW:
  			zval_undefined_cv(var EXECUTE_DATA_CC);
  			/* break missing intentionally */
  		case BP_VAR_W:
  			ZVAL_NULL(ptr);
  			break;
  	}
  	return ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv(uint32_t var, int type EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
  		if (type == BP_VAR_W) {
  			ZVAL_NULL(ret);
  		} else {
  			return _get_zval_cv_lookup(ret, var, type EXECUTE_DATA_CC);
  		}
  	}
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_deref(uint32_t var, int type EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
  		if (type == BP_VAR_W) {
  			ZVAL_NULL(ret);
  			return ret;
  		} else {
  			return _get_zval_cv_lookup(ret, var, type EXECUTE_DATA_CC);
  		}
  	}
  	ZVAL_DEREF(ret);
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_R(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
  		return zval_undefined_cv(var EXECUTE_DATA_CC);
  	}
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_deref_BP_VAR_R(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
  		return zval_undefined_cv(var EXECUTE_DATA_CC);
  	}
  	ZVAL_DEREF(ret);
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_IS(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_RW(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (UNEXPECTED(Z_TYPE_P(ret) == IS_UNDEF)) {
  		zval_undefined_cv(var EXECUTE_DATA_CC);
  		ZVAL_NULL(ret);
  		return ret;
  	}
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_W(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (Z_TYPE_P(ret) == IS_UNDEF) {
  		ZVAL_NULL(ret);
  	}
  	return ret;
  }
  
  static zend_always_inline zval *_get_zval_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type & (IS_TMP_VAR|IS_VAR)) {
  		if (!ZEND_DEBUG || op_type == IS_VAR) {
  			return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
  		} else {
  			ZEND_ASSERT(op_type == IS_TMP_VAR);
  			return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
  		}
  	} else {
  		if (op_type == IS_CONST) {
  			return RT_CONSTANT(opline, node);
  		} else if (op_type == IS_CV) {
  			return _get_zval_ptr_cv(node.var, type EXECUTE_DATA_CC);
  		} else {
  			return NULL;
  		}
  	}
  }
  
  static zend_always_inline zval *_get_op_data_zval_ptr_r(int op_type, znode_op node EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type & (IS_TMP_VAR|IS_VAR)) {
  		if (!ZEND_DEBUG || op_type == IS_VAR) {
  			return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
  		} else {
  			ZEND_ASSERT(op_type == IS_TMP_VAR);
  			return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
  		}
  	} else {
  		if (op_type == IS_CONST) {
  			return RT_CONSTANT(opline + 1, node);
  		} else if (op_type == IS_CV) {
  			return _get_zval_ptr_cv_BP_VAR_R(node.var EXECUTE_DATA_CC);
  		} else {
  			return NULL;
  		}
  	}
  }
  
  static zend_always_inline ZEND_ATTRIBUTE_UNUSED zval *_get_zval_ptr_deref(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type & (IS_TMP_VAR|IS_VAR)) {
  		if (op_type == IS_TMP_VAR) {
  			return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
  		} else {
  			ZEND_ASSERT(op_type == IS_VAR);
  			return _get_zval_ptr_var_deref(node.var EXECUTE_DATA_CC);
  		}
  	} else {
  		if (op_type == IS_CONST) {
  			return RT_CONSTANT(opline, node);
  		} else if (op_type == IS_CV) {
  			return _get_zval_ptr_cv_deref(node.var, type EXECUTE_DATA_CC);
  		} else {
  			return NULL;
  		}
  	}
  }
  
  static zend_always_inline ZEND_ATTRIBUTE_UNUSED zval *_get_op_data_zval_ptr_deref_r(int op_type, znode_op node EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type & (IS_TMP_VAR|IS_VAR)) {
  		if (op_type == IS_TMP_VAR) {
  			return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
  		} else {
  			ZEND_ASSERT(op_type == IS_VAR);
  			return _get_zval_ptr_var_deref(node.var EXECUTE_DATA_CC);
  		}
  	} else {
  		if (op_type == IS_CONST) {
  			return RT_CONSTANT(opline + 1, node);
  		} else if (op_type == IS_CV) {
  			return _get_zval_ptr_cv_deref_BP_VAR_R(node.var EXECUTE_DATA_CC);
  		} else {
  			return NULL;
  		}
  	}
  }
  
  static zend_always_inline zval *_get_zval_ptr_undef(int op_type, znode_op node, int type EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type & (IS_TMP_VAR|IS_VAR)) {
  		if (!ZEND_DEBUG || op_type == IS_VAR) {
  			return _get_zval_ptr_var(node.var EXECUTE_DATA_CC);
  		} else {
  			ZEND_ASSERT(op_type == IS_TMP_VAR);
  			return _get_zval_ptr_tmp(node.var EXECUTE_DATA_CC);
  		}
  	} else {
  		if (op_type == IS_CONST) {
  			return RT_CONSTANT(opline, node);
  		} else if (op_type == IS_CV) {
  			return EX_VAR(node.var);
  		} else {
  			return NULL;
  		}
  	}
  }
  
  static zend_always_inline zval *_get_zval_ptr_ptr_var(uint32_t var EXECUTE_DATA_DC)
  {
  	zval *ret = EX_VAR(var);
  
  	if (EXPECTED(Z_TYPE_P(ret) == IS_INDIRECT)) {
  		ret = Z_INDIRECT_P(ret);
  	}
  	return ret;
  }
  
  static inline zval *_get_zval_ptr_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC)
  {
  	if (op_type == IS_CV) {
  		return _get_zval_ptr_cv(node.var, type EXECUTE_DATA_CC);
  	} else /* if (op_type == IS_VAR) */ {
  		ZEND_ASSERT(op_type == IS_VAR);
  		return _get_zval_ptr_ptr_var(node.var EXECUTE_DATA_CC);
  	}
  }
  
  static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr(int op_type, znode_op op, int type EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type == IS_UNUSED) {
  		return &EX(This);
  	}
  	return get_zval_ptr(op_type, op, type);
  }
  
  static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr_undef(int op_type, znode_op op, int type EXECUTE_DATA_DC OPLINE_DC)
  {
  	if (op_type == IS_UNUSED) {
  		return &EX(This);
  	}
  	return get_zval_ptr_undef(op_type, op, type);
  }
  
  static inline ZEND_ATTRIBUTE_UNUSED zval *_get_obj_zval_ptr_ptr(int op_type, znode_op node, int type EXECUTE_DATA_DC)
  {
  	if (op_type == IS_UNUSED) {
  		return &EX(This);
  	}
  	return get_zval_ptr_ptr(op_type, node, type);
  }
  
  static inline void zend_assign_to_variable_reference(zval *variable_ptr, zval *value_ptr)
  {
  	zend_reference *ref;
  
  	if (EXPECTED(!Z_ISREF_P(value_ptr))) {
  		ZVAL_NEW_REF(value_ptr, value_ptr);
  	} else if (UNEXPECTED(variable_ptr == value_ptr)) {
  		return;
  	}
  
  	ref = Z_REF_P(value_ptr);
  	GC_ADDREF(ref);
  	if (Z_REFCOUNTED_P(variable_ptr)) {
  		zend_refcounted *garbage = Z_COUNTED_P(variable_ptr);
  
  		if (GC_DELREF(garbage) == 0) {
  			ZVAL_REF(variable_ptr, ref);
  			rc_dtor_func(garbage);
  			return;
  		} else {
  			gc_check_possible_root(garbage);
  		}
  	}
  	ZVAL_REF(variable_ptr, ref);
  }
  
  static zend_never_inline zval* zend_assign_to_typed_property_reference(zend_property_info *prop_info, zval *prop, zval *value_ptr EXECUTE_DATA_DC)
  {
  	if (!zend_verify_prop_assignable_by_ref(prop_info, value_ptr, EX_USES_STRICT_TYPES())) {
  		return &EG(uninitialized_zval);
  	}
  	if (Z_ISREF_P(prop)) {
  		ZEND_REF_DEL_TYPE_SOURCE(Z_REF_P(prop), prop_info);
  	}
  	zend_assign_to_variable_reference(prop, value_ptr);
  	ZEND_REF_ADD_TYPE_SOURCE(Z_REF_P(prop), prop_info);
  	return prop;
  }
  
  static zend_never_inline ZEND_COLD int zend_wrong_assign_to_variable_reference(zval *variable_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_error(E_NOTICE, "Only variables should be assigned by reference");
  	if (UNEXPECTED(EG(exception) != NULL)) {
  		return 0;
  	}
  
  	/* Use IS_TMP_VAR instead of IS_VAR to avoid ISREF check */
  	Z_TRY_ADDREF_P(value_ptr);
  	value_ptr = zend_assign_to_variable(variable_ptr, value_ptr, IS_TMP_VAR, EX_USES_STRICT_TYPES());
  
  	return 1;
  }
  
  static zend_never_inline ZEND_COLD void zend_throw_auto_init_in_prop_error(zend_property_info *prop, const char *type) {
  	zend_string *type_str = zend_type_to_string(prop->type);
  	zend_type_error(
  		"Cannot auto-initialize an %s inside property %s::$%s of type %s",
  		type,
  		ZSTR_VAL(prop->ce->name), zend_get_unmangled_property_name(prop->name),
  		ZSTR_VAL(type_str)
  	);
  	zend_string_release(type_str);
  }
  
  static zend_never_inline ZEND_COLD void zend_throw_auto_init_in_ref_error(zend_property_info *prop, const char *type) {
  	zend_string *type_str = zend_type_to_string(prop->type);
  	zend_type_error(
  		"Cannot auto-initialize an %s inside a reference held by property %s::$%s of type %s",
  		type,
  		ZSTR_VAL(prop->ce->name), zend_get_unmangled_property_name(prop->name),
  		ZSTR_VAL(type_str)
  	);
  	zend_string_release(type_str);
  }
  
  static zend_never_inline ZEND_COLD void zend_throw_access_uninit_prop_by_ref_error(
  		zend_property_info *prop) {
  	zend_throw_error(NULL,
  		"Cannot access uninitialized non-nullable property %s::$%s by reference",
  		ZSTR_VAL(prop->ce->name),
  		zend_get_unmangled_property_name(prop->name));
  }
  
  /* this should modify object only if it's empty */
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_throw_non_object_error(zval *object, zval *property OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_string *tmp_property_name;
  	zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
  
  	if (opline->opcode == ZEND_PRE_INC_OBJ
  	 || opline->opcode == ZEND_PRE_DEC_OBJ
  	 || opline->opcode == ZEND_POST_INC_OBJ
  	 || opline->opcode == ZEND_POST_DEC_OBJ) {
  		zend_throw_error(NULL,
  			"Attempt to increment/decrement property \"%s\" on %s",
  			ZSTR_VAL(property_name), zend_zval_type_name(object)
  		);
  	} else if (opline->opcode == ZEND_FETCH_OBJ_W
  			|| opline->opcode == ZEND_FETCH_OBJ_RW
  			|| opline->opcode == ZEND_FETCH_OBJ_FUNC_ARG
  			|| opline->opcode == ZEND_ASSIGN_OBJ_REF) {
  		zend_throw_error(NULL,
  			"Attempt to modify property \"%s\" on %s",
  			ZSTR_VAL(property_name), zend_zval_type_name(object)
  		);
  	} else {
  		zend_throw_error(NULL,
  			"Attempt to assign property \"%s\" on %s",
  			ZSTR_VAL(property_name), zend_zval_type_name(object)
  		);
  	}
  	zend_tmp_string_release(tmp_property_name);
  
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_NULL(EX_VAR(opline->result.var));
  	}
  }
  
  static ZEND_COLD void zend_verify_type_error_common(
  		const zend_function *zf, const zend_arg_info *arg_info,
  		void **cache_slot, zval *value,
  		const char **fname, const char **fsep, const char **fclass,
  		zend_string **need_msg, const char **given_kind)
  {
  	*fname = ZSTR_VAL(zf->common.function_name);
  	if (zf->common.scope) {
  		*fsep =  "::";
  		*fclass = ZSTR_VAL(zf->common.scope->name);
  	} else {
  		*fsep =  "";
  		*fclass = "";
  	}
  
  	*need_msg = zend_type_to_string_resolved(arg_info->type, zf->common.scope);
  
  	if (value) {
  		*given_kind = zend_zval_type_name(value);
  	} else {
  		*given_kind = "none";
  	}
  }
  
  ZEND_API ZEND_COLD void zend_verify_arg_error(
  		const zend_function *zf, const zend_arg_info *arg_info,
  		int arg_num, void **cache_slot, zval *value)
  {
  	zend_execute_data *ptr = EG(current_execute_data)->prev_execute_data;
  	const char *fname, *fsep, *fclass;
  	zend_string *need_msg;
  	const char *given_msg;
  
  	if (EG(exception)) {
  		/* The type verification itself might have already thrown an exception
  		 * through a promoted warning. */
  		return;
  	}
  
  	if (value) {
  		zend_verify_type_error_common(
  			zf, arg_info, cache_slot, value,
  			&fname, &fsep, &fclass, &need_msg, &given_msg);
  
  		if (zf->common.type == ZEND_USER_FUNCTION) {
  			if (ptr && ptr->func && ZEND_USER_CODE(ptr->func->common.type)) {
  				zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given, called in %s on line %d",
  					fclass, fsep, fname,
  					arg_num, ZSTR_VAL(arg_info->name),
  					ZSTR_VAL(need_msg), given_msg,
  					ZSTR_VAL(ptr->func->op_array.filename), ptr->opline->lineno
  				);
  			} else {
  				zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given",
  					fclass, fsep, fname, arg_num, ZSTR_VAL(arg_info->name), ZSTR_VAL(need_msg), given_msg
  				);
  			}
  		} else {
  			zend_type_error("%s%s%s(): Argument #%d ($%s) must be of type %s, %s given",
  				fclass, fsep, fname, arg_num, ((zend_internal_arg_info*) arg_info)->name, ZSTR_VAL(need_msg), given_msg
  			);
  		}
  
  		zend_string_release(need_msg);
  	} else {
  		zend_missing_arg_error(ptr);
  	}
  }
  
  static zend_bool zend_verify_weak_scalar_type_hint(uint32_t type_mask, zval *arg)
  {
  	zend_long lval;
  	double dval;
  	zend_string *str;
  	zend_bool bval;
  
  	/* Type preference order: int -> float -> string -> bool */
  	if (type_mask & MAY_BE_LONG) {
  		/* For an int|float union type and string value,
  		 * determine chosen type by is_numeric_string() semantics. */
  		if ((type_mask & MAY_BE_DOUBLE) && Z_TYPE_P(arg) == IS_STRING) {
  			zend_uchar type = is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), &lval, &dval, -1);
  			if (type == IS_LONG) {
  				zend_string_release(Z_STR_P(arg));
  				ZVAL_LONG(arg, lval);
  				return 1;
  			}
  			if (type == IS_DOUBLE) {
  				zend_string_release(Z_STR_P(arg));
  				ZVAL_DOUBLE(arg, dval);
  				return 1;
  			}
  		} else if (zend_parse_arg_long_weak(arg, &lval)) {
  			zval_ptr_dtor(arg);
  			ZVAL_LONG(arg, lval);
  			return 1;
  		}
  	}
  	if ((type_mask & MAY_BE_DOUBLE) && zend_parse_arg_double_weak(arg, &dval)) {
  		zval_ptr_dtor(arg);
  		ZVAL_DOUBLE(arg, dval);
  		return 1;
  	}
  	if ((type_mask & MAY_BE_STRING) && zend_parse_arg_str_weak(arg, &str)) {
  		/* on success "arg" is converted to IS_STRING */
  		return 1;
  	}
  	if ((type_mask & MAY_BE_BOOL) == MAY_BE_BOOL && zend_parse_arg_bool_weak(arg, &bval)) {
  		zval_ptr_dtor(arg);
  		ZVAL_BOOL(arg, bval);
  		return 1;
  	}
  	return 0;
  }
  
  #if ZEND_DEBUG
  /* Used to sanity-check internal arginfo types without performing any actual type conversions. */
  static zend_bool zend_verify_weak_scalar_type_hint_no_sideeffect(uint32_t type_mask, zval *arg)
  {
  	zend_long lval;
  	double dval;
  	zend_bool bval;
  
  	if (type_mask & MAY_BE_LONG) {
  		if (Z_TYPE_P(arg) == IS_STRING) {
  			/* Handle this case separately to avoid the "non well-formed" warning */
  			zend_uchar type = is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), NULL, &dval, 1);
  			if (type == IS_LONG) {
  				return 1;
  			}
  			if (type == IS_DOUBLE) {
  				if ((type_mask & MAY_BE_DOUBLE)
  						|| (!zend_isnan(dval) && ZEND_DOUBLE_FITS_LONG(dval))) {
  					return 1;
  				}
  
  			}
  		}
  		if (zend_parse_arg_long_weak(arg, &lval)) {
  			return 1;
  		}
  	}
  	if (type_mask & MAY_BE_DOUBLE) {
  		if (Z_TYPE_P(arg) == IS_STRING) {
  			/* Handle this case separately to avoid the "non well-formed" warning */
  			if (is_numeric_string(Z_STRVAL_P(arg), Z_STRLEN_P(arg), NULL, NULL, 1) != 0) {
  				return 1;
  			}
  		}
  		if (zend_parse_arg_double_weak(arg, &dval)) {
  			return 1;
  		}
  	}
  	/* We don't call cast_object here, because this check must be side-effect free. As this
  	 * is only used for a sanity check of arginfo/zpp consistency, it's okay if we accept
  	 * more than actually allowed here. */
  	if ((type_mask & MAY_BE_STRING) && (Z_TYPE_P(arg) < IS_STRING || Z_TYPE_P(arg) == IS_OBJECT)) {
  		return 1;
  	}
  	if ((type_mask & MAY_BE_BOOL) == MAY_BE_BOOL && zend_parse_arg_bool_weak(arg, &bval)) {
  		return 1;
  	}
  	return 0;
  }
  #endif
  
  ZEND_API zend_bool zend_verify_scalar_type_hint(uint32_t type_mask, zval *arg, zend_bool strict, zend_bool is_internal_arg)
  {
  	if (UNEXPECTED(strict)) {
  		/* SSTH Exception: IS_LONG may be accepted as IS_DOUBLE (converted) */
  		if (!(type_mask & MAY_BE_DOUBLE) || Z_TYPE_P(arg) != IS_LONG) {
  			return 0;
  		}
  	} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL)) {
  		/* NULL may be accepted only by nullable hints (this is already checked).
  		 * As an exception for internal functions, null is allowed for scalar types in weak mode. */
  		return is_internal_arg
  			&& (type_mask & (MAY_BE_TRUE|MAY_BE_FALSE|MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING));
  	}
  #if ZEND_DEBUG
  	if (is_internal_arg) {
  		return zend_verify_weak_scalar_type_hint_no_sideeffect(type_mask, arg);
  	}
  #endif
  	return zend_verify_weak_scalar_type_hint(type_mask, arg);
  }
  
  ZEND_COLD zend_never_inline void zend_verify_property_type_error(zend_property_info *info, zval *property)
  {
  	zend_string *type_str;
  
  	/* we _may_ land here in case reading already errored and runtime cache thus has not been updated (i.e. it contains a valid but unrelated info) */
  	if (EG(exception)) {
  		return;
  	}
  
  	type_str = zend_type_to_string(info->type);
  	zend_type_error("Cannot assign %s to property %s::$%s of type %s",
  		zend_zval_type_name(property),
  		ZSTR_VAL(info->ce->name),
  		zend_get_unmangled_property_name(info->name),
  		ZSTR_VAL(type_str));
  	zend_string_release(type_str);
  }
  
  static zend_class_entry *resolve_single_class_type(zend_string *name, zend_class_entry *self_ce) {
  	if (zend_string_equals_literal_ci(name, "self")) {
  		/* We need to explicitly check for this here, to avoid updating the type in the trait and
  		 * later using the wrong "self" when the trait is used in a class. */
  		if (UNEXPECTED((self_ce->ce_flags & ZEND_ACC_TRAIT) != 0)) {
  			return NULL;
  		}
  		return self_ce;
  	} else if (zend_string_equals_literal_ci(name, "parent")) {
  		return self_ce->parent;
  	} else {
  		return zend_lookup_class_ex(name, NULL, ZEND_FETCH_CLASS_NO_AUTOLOAD);
  	}
  }
  
  static zend_bool zend_check_and_resolve_property_class_type(
  		zend_property_info *info, zend_class_entry *object_ce) {
  	zend_class_entry *ce;
  	if (ZEND_TYPE_HAS_LIST(info->type)) {
  		zend_type *list_type;
  		ZEND_TYPE_LIST_FOREACH(ZEND_TYPE_LIST(info->type), list_type) {
  			if (ZEND_TYPE_HAS_NAME(*list_type)) {
  				zend_string *name = ZEND_TYPE_NAME(*list_type);
  				ce = resolve_single_class_type(name, info->ce);
  				if (!ce) {
  					continue;
  				}
  				zend_string_release(name);
  				ZEND_TYPE_SET_CE(*list_type, ce);
  			} else {
  				ce = ZEND_TYPE_CE(*list_type);
  			}
  			if (instanceof_function(object_ce, ce)) {
  				return 1;
  			}
  		} ZEND_TYPE_LIST_FOREACH_END();
  		return 0;
  	} else {
  		if (UNEXPECTED(ZEND_TYPE_HAS_NAME(info->type))) {
  			zend_string *name = ZEND_TYPE_NAME(info->type);
  			ce = resolve_single_class_type(name, info->ce);
  			if (UNEXPECTED(!ce)) {
  				return 0;
  			}
  
  			zend_string_release(name);
  			ZEND_TYPE_SET_CE(info->type, ce);
  		} else {
  			ce = ZEND_TYPE_CE(info->type);
  		}
  		return instanceof_function(object_ce, ce);
  	}
  }
  
  static zend_always_inline zend_bool i_zend_check_property_type(zend_property_info *info, zval *property, zend_bool strict)
  {
  	ZEND_ASSERT(!Z_ISREF_P(property));
  	if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(info->type, Z_TYPE_P(property)))) {
  		return 1;
  	}
  
  	if (ZEND_TYPE_HAS_CLASS(info->type) && Z_TYPE_P(property) == IS_OBJECT
  			&& zend_check_and_resolve_property_class_type(info, Z_OBJCE_P(property))) {
  		return 1;
  	}
  
  	uint32_t type_mask = ZEND_TYPE_FULL_MASK(info->type);
  	ZEND_ASSERT(!(type_mask & (MAY_BE_CALLABLE|MAY_BE_STATIC)));
  	if ((type_mask & MAY_BE_ITERABLE) && zend_is_iterable(property)) {
  		return 1;
  	}
  	return zend_verify_scalar_type_hint(type_mask, property, strict, 0);
  }
  
  static zend_always_inline zend_bool i_zend_verify_property_type(zend_property_info *info, zval *property, zend_bool strict)
  {
  	if (i_zend_check_property_type(info, property, strict)) {
  		return 1;
  	}
  
  	zend_verify_property_type_error(info, property);
  	return 0;
  }
  
  zend_bool zend_never_inline zend_verify_property_type(zend_property_info *info, zval *property, zend_bool strict) {
  	return i_zend_verify_property_type(info, property, strict);
  }
  
  static zend_never_inline zval* zend_assign_to_typed_prop(zend_property_info *info, zval *property_val, zval *value EXECUTE_DATA_DC)
  {
  	zval tmp;
  
  	ZVAL_DEREF(value);
  	ZVAL_COPY(&tmp, value);
  
  	if (UNEXPECTED(!i_zend_verify_property_type(info, &tmp, EX_USES_STRICT_TYPES()))) {
  		zval_ptr_dtor(&tmp);
  		return &EG(uninitialized_zval);
  	}
  
  	return zend_assign_to_variable(property_val, &tmp, IS_TMP_VAR, EX_USES_STRICT_TYPES());
  }
  
  ZEND_API zend_bool zend_value_instanceof_static(zval *zv) {
  	if (Z_TYPE_P(zv) != IS_OBJECT) {
  		return 0;
  	}
  
  	zend_class_entry *called_scope = zend_get_called_scope(EG(current_execute_data));
  	if (!called_scope) {
  		return 0;
  	}
  	return instanceof_function(Z_OBJCE_P(zv), called_scope);
  }
  
  
  static zend_always_inline zend_bool zend_check_type_slow(
  		zend_type type, zval *arg, zend_reference *ref, void **cache_slot, zend_class_entry *scope,
  		zend_bool is_return_type, zend_bool is_internal)
  {
  	uint32_t type_mask;
  	if (ZEND_TYPE_HAS_CLASS(type) && Z_TYPE_P(arg) == IS_OBJECT) {
  		zend_class_entry *ce;
  		if (ZEND_TYPE_HAS_LIST(type)) {
  			zend_type *list_type;
  			ZEND_TYPE_LIST_FOREACH(ZEND_TYPE_LIST(type), list_type) {
  				if (*cache_slot) {
  					ce = *cache_slot;
  				} else {
  					ce = zend_fetch_class(ZEND_TYPE_NAME(*list_type),
  						(ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD));
  					if (!ce) {
  						cache_slot++;
  						continue;
  					}
  					*cache_slot = ce;
  				}
  				if (instanceof_function(Z_OBJCE_P(arg), ce)) {
  					return 1;
  				}
  				cache_slot++;
  			} ZEND_TYPE_LIST_FOREACH_END();
  		} else {
  			if (EXPECTED(*cache_slot)) {
  				ce = (zend_class_entry *) *cache_slot;
  			} else {
  				ce = zend_fetch_class(ZEND_TYPE_NAME(type), (ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD));
  				if (UNEXPECTED(!ce)) {
  					goto builtin_types;
  				}
  				*cache_slot = (void *) ce;
  			}
  			if (instanceof_function(Z_OBJCE_P(arg), ce)) {
  				return 1;
  			}
  		}
  	}
  
  builtin_types:
  	type_mask = ZEND_TYPE_FULL_MASK(type);
  	if ((type_mask & MAY_BE_CALLABLE) && zend_is_callable(arg, 0, NULL)) {
  		return 1;
  	}
  	if ((type_mask & MAY_BE_ITERABLE) && zend_is_iterable(arg)) {
  		return 1;
  	}
  	if ((type_mask & MAY_BE_STATIC) && zend_value_instanceof_static(arg)) {
  		return 1;
  	}
  	if (ref && ZEND_REF_HAS_TYPE_SOURCES(ref)) {
  		/* We cannot have conversions for typed refs. */
  		return 0;
  	}
  	if (is_internal && is_return_type) {
  		/* For internal returns, the type has to match exactly, because we're not
  		 * going to check it for non-debug builds, and there will be no chance to
  		 * apply coercions. */
  		return 0;
  	}
  
  	return zend_verify_scalar_type_hint(type_mask, arg,
  		is_return_type ? ZEND_RET_USES_STRICT_TYPES() : ZEND_ARG_USES_STRICT_TYPES(),
  		is_internal);
  
  	/* Special handling for IS_VOID is not necessary (for return types),
  	 * because this case is already checked at compile-time. */
  }
  
  static zend_always_inline zend_bool zend_check_type(
  		zend_type type, zval *arg, void **cache_slot, zend_class_entry *scope,
  		zend_bool is_return_type, zend_bool is_internal)
  {
  	zend_reference *ref = NULL;
  	ZEND_ASSERT(ZEND_TYPE_IS_SET(type));
  
  	if (UNEXPECTED(Z_ISREF_P(arg))) {
  		ref = Z_REF_P(arg);
  		arg = Z_REFVAL_P(arg);
  	}
  
  	if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(type, Z_TYPE_P(arg)))) {
  		return 1;
  	}
  
  	return zend_check_type_slow(type, arg, ref, cache_slot, scope, is_return_type, is_internal);
  }
  
  static zend_always_inline int zend_verify_recv_arg_type(zend_function *zf, uint32_t arg_num, zval *arg, void **cache_slot)
  {
  	zend_arg_info *cur_arg_info;
  
  	ZEND_ASSERT(arg_num <= zf->common.num_args);
  	cur_arg_info = &zf->common.arg_info[arg_num-1];
  
  	if (ZEND_TYPE_IS_SET(cur_arg_info->type)
  			&& UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, cache_slot, zf->common.scope, 0, 0))) {
  		zend_verify_arg_error(zf, cur_arg_info, arg_num, cache_slot, arg);
  		return 0;
  	}
  
  	return 1;
  }
  
  static zend_always_inline int zend_verify_variadic_arg_type(zend_function *zf, uint32_t arg_num, zval *arg, void **cache_slot)
  {
  	zend_arg_info *cur_arg_info;
  
  	ZEND_ASSERT(arg_num > zf->common.num_args);
  	ZEND_ASSERT(zf->common.fn_flags & ZEND_ACC_VARIADIC);
  	cur_arg_info = &zf->common.arg_info[zf->common.num_args];
  
  	if (ZEND_TYPE_IS_SET(cur_arg_info->type)
  			&& UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, cache_slot, zf->common.scope, 0, 0))) {
  		zend_verify_arg_error(zf, cur_arg_info, arg_num, cache_slot, arg);
  		return 0;
  	}
  
  	return 1;
  }
  
  static zend_never_inline ZEND_ATTRIBUTE_UNUSED int zend_verify_internal_arg_types(zend_function *fbc, zend_execute_data *call)
  {
  	uint32_t i;
  	uint32_t num_args = ZEND_CALL_NUM_ARGS(call);
  	zval *arg = ZEND_CALL_ARG(call, 1);
  
  	for (i = 0; i < num_args; ++i) {
  		zend_arg_info *cur_arg_info;
  		void *dummy_cache_slot = NULL;
  
  		if (EXPECTED(i < fbc->common.num_args)) {
  			cur_arg_info = &fbc->common.arg_info[i];
  		} else if (UNEXPECTED(fbc->common.fn_flags & ZEND_ACC_VARIADIC)) {
  			cur_arg_info = &fbc->common.arg_info[fbc->common.num_args];
  		} else {
  			break;
  		}
  
  		if (ZEND_TYPE_IS_SET(cur_arg_info->type)
  				&& UNEXPECTED(!zend_check_type(cur_arg_info->type, arg, &dummy_cache_slot, fbc->common.scope, 0, /* is_internal */ 1))) {
  			return 0;
  		}
  		arg++;
  	}
  	return 1;
  }
  
  #if ZEND_DEBUG
  /* Determine whether an internal call should throw, because the passed arguments violate
   * an arginfo constraint. This is only checked in debug builds. In release builds, we
   * trust that arginfo matches what is enforced by zend_parse_parameters. */
  static zend_always_inline zend_bool zend_internal_call_should_throw(zend_function *fbc, zend_execute_data *call)
  {
  	if (fbc->common.required_num_args > ZEND_CALL_NUM_ARGS(call)) {
  		return 1;
  	}
  
  	if ((fbc->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) &&
  			!zend_verify_internal_arg_types(fbc, call)) {
  		return 1;
  	}
  
  	return 0;
  }
  
  static ZEND_COLD void zend_internal_call_arginfo_violation(zend_function *fbc)
  {
  	zend_error(E_CORE_ERROR, "Arginfo / zpp mismatch during call of %s%s%s()",
  		fbc->common.scope ? ZSTR_VAL(fbc->common.scope->name) : "",
  		fbc->common.scope ? "::" : "",
  		ZSTR_VAL(fbc->common.function_name));
  }
  #endif
  
  ZEND_API ZEND_COLD void ZEND_FASTCALL zend_missing_arg_error(zend_execute_data *execute_data)
  {
  	zend_execute_data *ptr = EX(prev_execute_data);
  
  	if (ptr && ptr->func && ZEND_USER_CODE(ptr->func->common.type)) {
  		zend_throw_error(zend_ce_argument_count_error, "Too few arguments to function %s%s%s(), %d passed in %s on line %d and %s %d expected",
  			EX(func)->common.scope ? ZSTR_VAL(EX(func)->common.scope->name) : "",
  			EX(func)->common.scope ? "::" : "",
  			ZSTR_VAL(EX(func)->common.function_name),
  			EX_NUM_ARGS(),
  			ZSTR_VAL(ptr->func->op_array.filename),
  			ptr->opline->lineno,
  			EX(func)->common.required_num_args == EX(func)->common.num_args ? "exactly" : "at least",
  			EX(func)->common.required_num_args);
  	} else {
  		zend_throw_error(zend_ce_argument_count_error, "Too few arguments to function %s%s%s(), %d passed and %s %d expected",
  			EX(func)->common.scope ? ZSTR_VAL(EX(func)->common.scope->name) : "",
  			EX(func)->common.scope ? "::" : "",
  			ZSTR_VAL(EX(func)->common.function_name),
  			EX_NUM_ARGS(),
  			EX(func)->common.required_num_args == EX(func)->common.num_args ? "exactly" : "at least",
  			EX(func)->common.required_num_args);
  	}
  }
  
  ZEND_API ZEND_COLD void zend_verify_return_error(
  		const zend_function *zf, void **cache_slot, zval *value)
  {
  	const zend_arg_info *arg_info = &zf->common.arg_info[-1];
  	const char *fname, *fsep, *fclass;
  	zend_string *need_msg;
  	const char *given_msg;
  
  	zend_verify_type_error_common(
  		zf, arg_info, cache_slot, value,
  		&fname, &fsep, &fclass, &need_msg, &given_msg);
  
  	zend_type_error("%s%s%s(): Return value must be of type %s, %s returned",
  		fclass, fsep, fname, ZSTR_VAL(need_msg), given_msg);
  
  	zend_string_release(need_msg);
  }
  
  #if ZEND_DEBUG
  static ZEND_COLD void zend_verify_internal_return_error(
  		const zend_function *zf, void **cache_slot, zval *value)
  {
  	const zend_arg_info *arg_info = &zf->common.arg_info[-1];
  	const char *fname, *fsep, *fclass;
  	zend_string *need_msg;
  	const char *given_msg;
  
  	zend_verify_type_error_common(
  		zf, arg_info, cache_slot, value,
  		&fname, &fsep, &fclass, &need_msg, &given_msg);
  
  	zend_error_noreturn(E_CORE_ERROR, "%s%s%s(): Return value must be of type %s, %s returned",
  		fclass, fsep, fname, ZSTR_VAL(need_msg), given_msg);
  }
  
  static ZEND_COLD void zend_verify_void_return_error(const zend_function *zf, const char *returned_msg, const char *returned_kind)
  {
  	const char *fname = ZSTR_VAL(zf->common.function_name);
  	const char *fsep;
  	const char *fclass;
  
  	if (zf->common.scope) {
  		fsep =  "::";
  		fclass = ZSTR_VAL(zf->common.scope->name);
  	} else {
  		fsep =  "";
  		fclass = "";
  	}
  
  	zend_type_error("%s%s%s() must not return a value, %s%s returned",
  		fclass, fsep, fname, returned_msg, returned_kind);
  }
  
  static int zend_verify_internal_return_type(zend_function *zf, zval *ret)
  {
  	zend_internal_arg_info *ret_info = zf->internal_function.arg_info - 1;
  	void *dummy_cache_slot = NULL;
  
  	if (ZEND_TYPE_FULL_MASK(ret_info->type) & MAY_BE_VOID) {
  		if (UNEXPECTED(Z_TYPE_P(ret) != IS_NULL)) {
  			zend_verify_void_return_error(zf, zend_zval_type_name(ret), "");
  			return 0;
  		}
  		return 1;
  	}
  
  	if (UNEXPECTED(!zend_check_type(ret_info->type, ret, &dummy_cache_slot, NULL, 1, /* is_internal */ 1))) {
  		zend_verify_internal_return_error(zf, &dummy_cache_slot, ret);
  		return 0;
  	}
  
  	return 1;
  }
  #endif
  
  static ZEND_COLD int zend_verify_missing_return_type(const zend_function *zf, void **cache_slot)
  {
  	/* VERIFY_RETURN_TYPE is not emitted for "void" functions, so this is always an error. */
  	zend_verify_return_error(zf, cache_slot, NULL);
  	return 0;
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_object_as_array(void)
  {
  	zend_throw_error(NULL, "Cannot use object as array");
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_illegal_offset(void)
  {
  	zend_type_error("Illegal offset type");
  }
  
  static zend_never_inline void zend_assign_to_object_dim(zval *object, zval *dim, zval *value OPLINE_DC EXECUTE_DATA_DC)
  {
  	Z_OBJ_HT_P(object)->write_dimension(Z_OBJ_P(object), dim, value);
  
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_COPY(EX_VAR(opline->result.var), value);
  	}
  }
  
  static zend_always_inline int zend_binary_op(zval *ret, zval *op1, zval *op2 OPLINE_DC)
  {
  	static const binary_op_type zend_binary_ops[] = {
  		add_function,
  		sub_function,
  		mul_function,
  		div_function,
  		mod_function,
  		shift_left_function,
  		shift_right_function,
  		concat_function,
  		bitwise_or_function,
  		bitwise_and_function,
  		bitwise_xor_function,
  		pow_function
  	};
  	/* size_t cast makes GCC to better optimize 64-bit PIC code */
  	size_t opcode = (size_t)opline->extended_value;
  
  	return zend_binary_ops[opcode - ZEND_ADD](ret, op1, op2);
  }
  
  static zend_never_inline void zend_binary_assign_op_obj_dim(zval *object, zval *property OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *value;
  	zval *z;
  	zval rv, res;
  
  	value = get_op_data_zval_ptr_r((opline+1)->op1_type, (opline+1)->op1);
  	if ((z = Z_OBJ_HT_P(object)->read_dimension(Z_OBJ_P(object), property, BP_VAR_R, &rv)) != NULL) {
  
  		if (zend_binary_op(&res, z, value OPLINE_CC) == SUCCESS) {
  			Z_OBJ_HT_P(object)->write_dimension(Z_OBJ_P(object), property, &res);
  		}
  		if (z == &rv) {
  			zval_ptr_dtor(&rv);
  		}
  		if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  			ZVAL_COPY(EX_VAR(opline->result.var), &res);
  		}
  		zval_ptr_dtor(&res);
  	} else {
  		zend_use_object_as_array();
  		if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  			ZVAL_NULL(EX_VAR(opline->result.var));
  		}
  	}
  	FREE_OP((opline+1)->op1_type, (opline+1)->op1.var);
  }
  
  static zend_never_inline void zend_binary_assign_op_typed_ref(zend_reference *ref, zval *value OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval z_copy;
  
  	zend_binary_op(&z_copy, &ref->val, value OPLINE_CC);
  	if (EXPECTED(zend_verify_ref_assignable_zval(ref, &z_copy, EX_USES_STRICT_TYPES()))) {
  		zval_ptr_dtor(&ref->val);
  		ZVAL_COPY_VALUE(&ref->val, &z_copy);
  	} else {
  		zval_ptr_dtor(&z_copy);
  	}
  }
  
  static zend_never_inline void zend_binary_assign_op_typed_prop(zend_property_info *prop_info, zval *zptr, zval *value OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval z_copy;
  
  	zend_binary_op(&z_copy, zptr, value OPLINE_CC);
  	if (EXPECTED(zend_verify_property_type(prop_info, &z_copy, EX_USES_STRICT_TYPES()))) {
  		zval_ptr_dtor(zptr);
  		ZVAL_COPY_VALUE(zptr, &z_copy);
  	} else {
  		zval_ptr_dtor(&z_copy);
  	}
  }
  
  static zend_never_inline zend_long zend_check_string_offset(zval *dim, int type EXECUTE_DATA_DC)
  {
  	zend_long offset;
  
  try_again:
  	if (UNEXPECTED(Z_TYPE_P(dim) != IS_LONG)) {
  		switch(Z_TYPE_P(dim)) {
  			case IS_STRING:
  				if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
  					break;
  				}
  				if (type != BP_VAR_UNSET) {
  					zend_error(E_WARNING, "Illegal string offset \"%s\"", Z_STRVAL_P(dim));
  				}
  				break;
  			case IS_UNDEF:
  				ZVAL_UNDEFINED_OP2();
  			case IS_DOUBLE:
  			case IS_NULL:
  			case IS_FALSE:
  			case IS_TRUE:
  				zend_error(E_WARNING, "String offset cast occurred");
  				break;
  			case IS_REFERENCE:
  				dim = Z_REFVAL_P(dim);
  				goto try_again;
  			default:
  				zend_illegal_offset();
  				break;
  		}
  
  		offset = zval_get_long_func(dim);
  	} else {
  		offset = Z_LVAL_P(dim);
  	}
  
  	return offset;
  }
  
  static zend_never_inline ZEND_COLD void zend_wrong_string_offset(EXECUTE_DATA_D)
  {
  	const char *msg = NULL;
  	const zend_op *opline = EX(opline);
  	const zend_op *end;
  	uint32_t var;
  
  	if (UNEXPECTED(EG(exception) != NULL)) {
  		return;
  	}
  
  	switch (opline->opcode) {
  		case ZEND_ASSIGN_OP:
  		case ZEND_ASSIGN_DIM_OP:
  		case ZEND_ASSIGN_OBJ_OP:
  		case ZEND_ASSIGN_STATIC_PROP_OP:
  			msg = "Cannot use assign-op operators with string offsets";
  			break;
  		case ZEND_FETCH_DIM_W:
  		case ZEND_FETCH_DIM_RW:
  		case ZEND_FETCH_DIM_FUNC_ARG:
  		case ZEND_FETCH_DIM_UNSET:
  		case ZEND_FETCH_LIST_W:
  			/* TODO: Encode the "reason" into opline->extended_value??? */
  			var = opline->result.var;
  			opline++;
  			end = EG(current_execute_data)->func->op_array.opcodes +
  				EG(current_execute_data)->func->op_array.last;
  			while (opline < end) {
  				if (opline->op1_type == IS_VAR && opline->op1.var == var) {
  					switch (opline->opcode) {
  						case ZEND_FETCH_OBJ_W:
  						case ZEND_FETCH_OBJ_RW:
  						case ZEND_FETCH_OBJ_FUNC_ARG:
  						case ZEND_FETCH_OBJ_UNSET:
  						case ZEND_ASSIGN_OBJ:
  						case ZEND_ASSIGN_OBJ_OP:
  						case ZEND_ASSIGN_OBJ_REF:
  							msg = "Cannot use string offset as an object";
  							break;
  						case ZEND_FETCH_DIM_W:
  						case ZEND_FETCH_DIM_RW:
  						case ZEND_FETCH_DIM_FUNC_ARG:
  						case ZEND_FETCH_DIM_UNSET:
  						case ZEND_FETCH_LIST_W:
  						case ZEND_ASSIGN_DIM:
  						case ZEND_ASSIGN_DIM_OP:
  							msg = "Cannot use string offset as an array";
  							break;
  						case ZEND_ASSIGN_STATIC_PROP_OP:
  						case ZEND_ASSIGN_OP:
  							msg = "Cannot use assign-op operators with string offsets";
  							break;
  						case ZEND_PRE_INC_OBJ:
  						case ZEND_PRE_DEC_OBJ:
  						case ZEND_POST_INC_OBJ:
  						case ZEND_POST_DEC_OBJ:
  						case ZEND_PRE_INC:
  						case ZEND_PRE_DEC:
  						case ZEND_POST_INC:
  						case ZEND_POST_DEC:
  							msg = "Cannot increment/decrement string offsets";
  							break;
  						case ZEND_ASSIGN_REF:
  						case ZEND_ADD_ARRAY_ELEMENT:
  						case ZEND_INIT_ARRAY:
  						case ZEND_MAKE_REF:
  							msg = "Cannot create references to/from string offsets";
  							break;
  						case ZEND_RETURN_BY_REF:
  						case ZEND_VERIFY_RETURN_TYPE:
  							msg = "Cannot return string offsets by reference";
  							break;
  						case ZEND_UNSET_DIM:
  						case ZEND_UNSET_OBJ:
  							msg = "Cannot unset string offsets";
  							break;
  						case ZEND_YIELD:
  							msg = "Cannot yield string offsets by reference";
  							break;
  						case ZEND_SEND_REF:
  						case ZEND_SEND_VAR_EX:
  						case ZEND_SEND_FUNC_ARG:
  							msg = "Only variables can be passed by reference";
  							break;
  						case ZEND_FE_RESET_RW:
  							msg = "Cannot iterate on string offsets by reference";
  							break;
  						EMPTY_SWITCH_DEFAULT_CASE();
  					}
  					break;
  				}
  				if (opline->op2_type == IS_VAR && opline->op2.var == var) {
  					ZEND_ASSERT(opline->opcode == ZEND_ASSIGN_REF);
  					msg = "Cannot create references to/from string offsets";
  					break;
  				}
  			}
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE();
  	}
  	ZEND_ASSERT(msg != NULL);
  	zend_throw_error(NULL, "%s", msg);
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_wrong_property_read(zval *object, zval *property)
  {
  	zend_string *tmp_property_name;
  	zend_string *property_name = zval_get_tmp_string(property, &tmp_property_name);
  	zend_error(E_WARNING, "Attempt to read property \"%s\" on %s", ZSTR_VAL(property_name), zend_zval_type_name(object));
  	zend_tmp_string_release(tmp_property_name);
  }
  
  ZEND_API ZEND_COLD void ZEND_FASTCALL zend_deprecated_function(const zend_function *fbc)
  {
  	if (fbc->common.scope) {
  		zend_error(E_DEPRECATED, "Method %s::%s() is deprecated",
  			ZSTR_VAL(fbc->common.scope->name),
  			ZSTR_VAL(fbc->common.function_name)
  		);
  	} else {
  		zend_error(E_DEPRECATED, "Function %s() is deprecated", ZSTR_VAL(fbc->common.function_name));
  	}
  }
  
  static zend_never_inline void zend_assign_to_string_offset(zval *str, zval *dim, zval *value OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_uchar c;
  	size_t string_len;
  	zend_long offset;
  
  	offset = zend_check_string_offset(dim, BP_VAR_W EXECUTE_DATA_CC);
  	if (offset < -(zend_long)Z_STRLEN_P(str)) {
  		/* Error on negative offset */
  		zend_error(E_WARNING, "Illegal string offset " ZEND_LONG_FMT, offset);
  		if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  			ZVAL_NULL(EX_VAR(opline->result.var));
  		}
  		return;
  	}
  
  	if (Z_TYPE_P(value) != IS_STRING) {
  		/* Convert to string, just the time to pick the 1st byte */
  		zend_string *tmp = zval_try_get_string_func(value);
  		if (UNEXPECTED(!tmp)) {
  			if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  				ZVAL_UNDEF(EX_VAR(opline->result.var));
  			}
  			return;
  		}
  
  		string_len = ZSTR_LEN(tmp);
  		c = (zend_uchar)ZSTR_VAL(tmp)[0];
  		zend_string_release_ex(tmp, 0);
  	} else {
  		string_len = Z_STRLEN_P(value);
  		c = (zend_uchar)Z_STRVAL_P(value)[0];
  	}
  
  	if (string_len != 1) {
  		if (string_len == 0) {
  			/* Error on empty input string */
  			zend_throw_error(NULL, "Cannot assign an empty string to a string offset");
  			if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  				ZVAL_NULL(EX_VAR(opline->result.var));
  			}
  			return;
  		}
  
  		zend_error(E_WARNING, "Only the first byte will be assigned to the string offset");
  	}
  
  	if (offset < 0) { /* Handle negative offset */
  		offset += (zend_long)Z_STRLEN_P(str);
  	}
  
  	if ((size_t)offset >= Z_STRLEN_P(str)) {
  		/* Extend string if needed */
  		zend_long old_len = Z_STRLEN_P(str);
  		ZVAL_NEW_STR(str, zend_string_extend(Z_STR_P(str), offset + 1, 0));
  		memset(Z_STRVAL_P(str) + old_len, ' ', offset - old_len);
  		Z_STRVAL_P(str)[offset+1] = 0;
  	} else if (!Z_REFCOUNTED_P(str)) {
  		ZVAL_NEW_STR(str, zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0));
  	} else if (Z_REFCOUNT_P(str) > 1) {
  		Z_DELREF_P(str);
  		ZVAL_NEW_STR(str, zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0));
  	} else {
  		zend_string_forget_hash_val(Z_STR_P(str));
  	}
  
  	Z_STRVAL_P(str)[offset] = c;
  
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		/* Return the new character */
  		ZVAL_CHAR(EX_VAR(opline->result.var), c);
  	}
  }
  
  static zend_property_info *zend_get_prop_not_accepting_double(zend_reference *ref)
  {
  	zend_property_info *prop;
  	ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
  		if (!(ZEND_TYPE_FULL_MASK(prop->type) & MAY_BE_DOUBLE)) {
  			return prop;
  		}
  	} ZEND_REF_FOREACH_TYPE_SOURCES_END();
  	return NULL;
  }
  
  static ZEND_COLD zend_long zend_throw_incdec_ref_error(
  		zend_reference *ref, zend_property_info *error_prop OPLINE_DC)
  {
  	zend_string *type_str = zend_type_to_string(error_prop->type);
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		zend_type_error(
  			"Cannot increment a reference held by property %s::$%s of type %s past its maximal value",
  			ZSTR_VAL(error_prop->ce->name),
  			zend_get_unmangled_property_name(error_prop->name),
  			ZSTR_VAL(type_str));
  		zend_string_release(type_str);
  		return ZEND_LONG_MAX;
  	} else {
  		zend_type_error(
  			"Cannot decrement a reference held by property %s::$%s of type %s past its minimal value",
  			ZSTR_VAL(error_prop->ce->name),
  			zend_get_unmangled_property_name(error_prop->name),
  			ZSTR_VAL(type_str));
  		zend_string_release(type_str);
  		return ZEND_LONG_MIN;
  	}
  }
  
  static ZEND_COLD zend_long zend_throw_incdec_prop_error(zend_property_info *prop OPLINE_DC) {
  	zend_string *type_str = zend_type_to_string(prop->type);
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		zend_type_error("Cannot increment property %s::$%s of type %s past its maximal value",
  			ZSTR_VAL(prop->ce->name),
  			zend_get_unmangled_property_name(prop->name),
  			ZSTR_VAL(type_str));
  		zend_string_release(type_str);
  		return ZEND_LONG_MAX;
  	} else {
  		zend_type_error("Cannot decrement property %s::$%s of type %s past its minimal value",
  			ZSTR_VAL(prop->ce->name),
  			zend_get_unmangled_property_name(prop->name),
  			ZSTR_VAL(type_str));
  		zend_string_release(type_str);
  		return ZEND_LONG_MIN;
  	}
  }
  
  static void zend_incdec_typed_ref(zend_reference *ref, zval *copy OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval tmp;
  	zval *var_ptr = &ref->val;
  
  	if (!copy) {
  		copy = &tmp;
  	}
  
  	ZVAL_COPY(copy, var_ptr);
  
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		increment_function(var_ptr);
  	} else {
  		decrement_function(var_ptr);
  	}
  
  	if (UNEXPECTED(Z_TYPE_P(var_ptr) == IS_DOUBLE) && Z_TYPE_P(copy) == IS_LONG) {
  		zend_property_info *error_prop = zend_get_prop_not_accepting_double(ref);
  		if (UNEXPECTED(error_prop)) {
  			zend_long val = zend_throw_incdec_ref_error(ref, error_prop OPLINE_CC);
  			ZVAL_LONG(var_ptr, val);
  		}
  	} else if (UNEXPECTED(!zend_verify_ref_assignable_zval(ref, var_ptr, EX_USES_STRICT_TYPES()))) {
  		zval_ptr_dtor(var_ptr);
  		ZVAL_COPY_VALUE(var_ptr, copy);
  		ZVAL_UNDEF(copy);
  	} else if (copy == &tmp) {
  		zval_ptr_dtor(&tmp);
  	}
  }
  
  static void zend_incdec_typed_prop(zend_property_info *prop_info, zval *var_ptr, zval *copy OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval tmp;
  
  	if (!copy) {
  		copy = &tmp;
  	}
  
  	ZVAL_COPY(copy, var_ptr);
  
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		increment_function(var_ptr);
  	} else {
  		decrement_function(var_ptr);
  	}
  
  	if (UNEXPECTED(Z_TYPE_P(var_ptr) == IS_DOUBLE) && Z_TYPE_P(copy) == IS_LONG) {
  		if (!(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
  			zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
  			ZVAL_LONG(var_ptr, val);
  		}
  	} else if (UNEXPECTED(!zend_verify_property_type(prop_info, var_ptr, EX_USES_STRICT_TYPES()))) {
  		zval_ptr_dtor(var_ptr);
  		ZVAL_COPY_VALUE(var_ptr, copy);
  		ZVAL_UNDEF(copy);
  	} else if (copy == &tmp) {
  		zval_ptr_dtor(&tmp);
  	}
  }
  
  static void zend_pre_incdec_property_zval(zval *prop, zend_property_info *prop_info OPLINE_DC EXECUTE_DATA_DC)
  {
  	if (EXPECTED(Z_TYPE_P(prop) == IS_LONG)) {
  		if (ZEND_IS_INCREMENT(opline->opcode)) {
  			fast_long_increment_function(prop);
  		} else {
  			fast_long_decrement_function(prop);
  		}
  		if (UNEXPECTED(Z_TYPE_P(prop) != IS_LONG) && UNEXPECTED(prop_info)
  				&& !(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
  			zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
  			ZVAL_LONG(prop, val);
  		}
  	} else {
  		do {
  			if (Z_ISREF_P(prop)) {
  				zend_reference *ref = Z_REF_P(prop);
  				prop = Z_REFVAL_P(prop);
  				if (UNEXPECTED(ZEND_REF_HAS_TYPE_SOURCES(ref))) {
  					zend_incdec_typed_ref(ref, NULL OPLINE_CC EXECUTE_DATA_CC);
  					break;
  				}
  			}
  
  			if (UNEXPECTED(prop_info)) {
  				zend_incdec_typed_prop(prop_info, prop, NULL OPLINE_CC EXECUTE_DATA_CC);
  			} else if (ZEND_IS_INCREMENT(opline->opcode)) {
  				increment_function(prop);
  			} else {
  				decrement_function(prop);
  			}
  		} while (0);
  	}
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_COPY(EX_VAR(opline->result.var), prop);
  	}
  }
  
  static void zend_post_incdec_property_zval(zval *prop, zend_property_info *prop_info OPLINE_DC EXECUTE_DATA_DC)
  {
  	if (EXPECTED(Z_TYPE_P(prop) == IS_LONG)) {
  		ZVAL_LONG(EX_VAR(opline->result.var), Z_LVAL_P(prop));
  		if (ZEND_IS_INCREMENT(opline->opcode)) {
  			fast_long_increment_function(prop);
  		} else {
  			fast_long_decrement_function(prop);
  		}
  		if (UNEXPECTED(Z_TYPE_P(prop) != IS_LONG) && UNEXPECTED(prop_info)
  				&& !(ZEND_TYPE_FULL_MASK(prop_info->type) & MAY_BE_DOUBLE)) {
  			zend_long val = zend_throw_incdec_prop_error(prop_info OPLINE_CC);
  			ZVAL_LONG(prop, val);
  		}
  	} else {
  		if (Z_ISREF_P(prop)) {
  			zend_reference *ref = Z_REF_P(prop);
  			prop = Z_REFVAL_P(prop);
  			if (ZEND_REF_HAS_TYPE_SOURCES(ref)) {
  				zend_incdec_typed_ref(ref, EX_VAR(opline->result.var) OPLINE_CC EXECUTE_DATA_CC);
  				return;
  			}
  		}
  
  		if (UNEXPECTED(prop_info)) {
  			zend_incdec_typed_prop(prop_info, prop, EX_VAR(opline->result.var) OPLINE_CC EXECUTE_DATA_CC);
  		} else {
  			ZVAL_COPY(EX_VAR(opline->result.var), prop);
  			if (ZEND_IS_INCREMENT(opline->opcode)) {
  				increment_function(prop);
  			} else {
  				decrement_function(prop);
  			}
  		}
  	}
  }
  
  static zend_never_inline void zend_post_incdec_overloaded_property(zend_object *object, zend_string *name, void **cache_slot OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval rv;
  	zval *z;
  	zval z_copy;
  
  	GC_ADDREF(object);
  	z =object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
  	if (UNEXPECTED(EG(exception))) {
  		OBJ_RELEASE(object);
  		ZVAL_UNDEF(EX_VAR(opline->result.var));
  		return;
  	}
  
  	ZVAL_COPY_DEREF(&z_copy, z);
  	ZVAL_COPY(EX_VAR(opline->result.var), &z_copy);
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		increment_function(&z_copy);
  	} else {
  		decrement_function(&z_copy);
  	}
  	object->handlers->write_property(object, name, &z_copy, cache_slot);
  	OBJ_RELEASE(object);
  	zval_ptr_dtor(&z_copy);
  	zval_ptr_dtor(z);
  }
  
  static zend_never_inline void zend_pre_incdec_overloaded_property(zend_object *object, zend_string *name, void **cache_slot OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval rv;
  	zval *z;
  	zval z_copy;
  
  	GC_ADDREF(object);
  	z = object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
  	if (UNEXPECTED(EG(exception))) {
  		OBJ_RELEASE(object);
  		if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  			ZVAL_NULL(EX_VAR(opline->result.var));
  		}
  		return;
  	}
  
  	ZVAL_COPY_DEREF(&z_copy, z);
  	if (ZEND_IS_INCREMENT(opline->opcode)) {
  		increment_function(&z_copy);
  	} else {
  		decrement_function(&z_copy);
  	}
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_COPY(EX_VAR(opline->result.var), &z_copy);
  	}
  	object->handlers->write_property(object, name, &z_copy, cache_slot);
  	OBJ_RELEASE(object);
  	zval_ptr_dtor(&z_copy);
  	zval_ptr_dtor(z);
  }
  
  static zend_never_inline void zend_assign_op_overloaded_property(zend_object *object, zend_string *name, void **cache_slot, zval *value OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *z;
  	zval rv, res;
  
  	GC_ADDREF(object);
  	z = object->handlers->read_property(object, name, BP_VAR_R, cache_slot, &rv);
  	if (UNEXPECTED(EG(exception))) {
  		OBJ_RELEASE(object);
  		if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  			ZVAL_UNDEF(EX_VAR(opline->result.var));
  		}
  		return;
  	}
  	if (zend_binary_op(&res, z, value OPLINE_CC) == SUCCESS) {
  		object->handlers->write_property(object, name, &res, cache_slot);
  	}
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_COPY(EX_VAR(opline->result.var), &res);
  	}
  	zval_ptr_dtor(z);
  	zval_ptr_dtor(&res);
  	OBJ_RELEASE(object);
  }
  
  /* Utility Functions for Extensions */
  static void zend_extension_statement_handler(const zend_extension *extension, zend_execute_data *frame)
  {
  	if (extension->statement_handler) {
  		extension->statement_handler(frame);
  	}
  }
  
  
  static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_execute_data *frame)
  {
  	if (extension->fcall_begin_handler) {
  		extension->fcall_begin_handler(frame);
  	}
  }
  
  
  static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_execute_data *frame)
  {
  	if (extension->fcall_end_handler) {
  		extension->fcall_end_handler(frame);
  	}
  }
  
  
  static zend_always_inline HashTable *zend_get_target_symbol_table(int fetch_type EXECUTE_DATA_DC)
  {
  	HashTable *ht;
  
  	if (EXPECTED(fetch_type & (ZEND_FETCH_GLOBAL_LOCK | ZEND_FETCH_GLOBAL))) {
  		ht = &EG(symbol_table);
  	} else {
  		ZEND_ASSERT(fetch_type & ZEND_FETCH_LOCAL);
  		if (!(EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE)) {
  			zend_rebuild_symbol_table();
  		}
  		ht = EX(symbol_table);
  	}
  	return ht;
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_offset(zend_long lval)
  {
  	zend_error(E_NOTICE, "Undefined array key " ZEND_LONG_FMT, lval);
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_index(const zend_string *offset)
  {
  	zend_error(E_NOTICE, "Undefined array key \"%s\"", ZSTR_VAL(offset));
  }
  
  ZEND_API ZEND_COLD int ZEND_FASTCALL zend_undefined_offset_write(HashTable *ht, zend_long lval)
  {
  	/* The array may be destroyed while throwing the notice.
  	 * Temporarily increase the refcount to detect this situation. */
  	if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE)) {
  		GC_ADDREF(ht);
  	}
  	zend_undefined_offset(lval);
  	if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) && !GC_DELREF(ht)) {
  		zend_array_destroy(ht);
  		return FAILURE;
  	}
  	if (EG(exception)) {
  		return FAILURE;
  	}
  	return SUCCESS;
  }
  
  ZEND_API ZEND_COLD int ZEND_FASTCALL zend_undefined_index_write(HashTable *ht, zend_string *offset)
  {
  	/* The array may be destroyed while throwing the notice.
  	 * Temporarily increase the refcount to detect this situation. */
  	if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE)) {
  		GC_ADDREF(ht);
  	}
  	zend_undefined_index(offset);
  	if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) && !GC_DELREF(ht)) {
  		zend_array_destroy(ht);
  		return FAILURE;
  	}
  	if (EG(exception)) {
  		return FAILURE;
  	}
  	return SUCCESS;
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_undefined_method(const zend_class_entry *ce, const zend_string *method)
  {
  	zend_throw_error(NULL, "Call to undefined method %s::%s()", ZSTR_VAL(ce->name), ZSTR_VAL(method));
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_invalid_method_call(zval *object, zval *function_name)
  {
  	zend_throw_error(NULL, "Call to a member function %s() on %s",
  		Z_STRVAL_P(function_name), zend_zval_type_name(object));
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_non_static_method_call(const zend_function *fbc)
  {
  	zend_throw_error(
  		zend_ce_error,
  		"Non-static method %s::%s() cannot be called statically",
  		ZSTR_VAL(fbc->common.scope->name), ZSTR_VAL(fbc->common.function_name));
  }
  
  ZEND_COLD void ZEND_FASTCALL zend_param_must_be_ref(const zend_function *func, uint32_t arg_num)
  {
  	const char *arg_name = get_function_arg_name(func, arg_num);
  
  	zend_error(E_WARNING, "%s%s%s(): Argument #%d%s%s%s must be passed by reference, value given",
  		func->common.scope ? ZSTR_VAL(func->common.scope->name) : "",
  		func->common.scope ? "::" : "",
  		ZSTR_VAL(func->common.function_name),
  		arg_num,
  		arg_name ? " ($" : "",
  		arg_name ? arg_name : "",
  		arg_name ? ")" : ""
  	);
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_scalar_as_array(void)
  {
  	zend_throw_error(NULL, "Cannot use a scalar value as an array");
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_cannot_add_element(void)
  {
  	zend_throw_error(NULL, "Cannot add element to the array as the next element is already occupied");
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_resource_as_offset(const zval *dim)
  {
  	zend_error(E_WARNING, "Resource ID#%d used as offset, casting to integer (%d)", Z_RES_HANDLE_P(dim), Z_RES_HANDLE_P(dim));
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_use_new_element_for_string(void)
  {
  	zend_throw_error(NULL, "[] operator not supported for strings");
  }
  
  static ZEND_COLD void zend_binary_assign_op_dim_slow(zval *container, zval *dim OPLINE_DC EXECUTE_DATA_DC)
  {
  	if (UNEXPECTED(Z_TYPE_P(container) == IS_STRING)) {
  		if (opline->op2_type == IS_UNUSED) {
  			zend_use_new_element_for_string();
  		} else {
  			zend_check_string_offset(dim, BP_VAR_RW EXECUTE_DATA_CC);
  			zend_wrong_string_offset(EXECUTE_DATA_C);
  		}
  	} else {
  		zend_use_scalar_as_array();
  	}
  	FREE_OP((opline+1)->op1_type, (opline+1)->op1.var);
  }
  
  static zend_never_inline zend_uchar slow_index_convert(HashTable *ht, const zval *dim, zend_value *value EXECUTE_DATA_DC)
  {
  	switch (Z_TYPE_P(dim)) {
  		case IS_UNDEF: {
  			/* The array may be destroyed while throwing the notice.
  			 * Temporarily increase the refcount to detect this situation. */
  			if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE)) {
  				GC_ADDREF(ht);
  			}
  			ZVAL_UNDEFINED_OP2();
  			if (!(GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) && !GC_DELREF(ht)) {
  				zend_array_destroy(ht);
  				return IS_NULL;
  			}
  			if (EG(exception)) {
  				return IS_NULL;
  			}
  			/* break missing intentionally */
  		}
  		case IS_NULL:
  			value->str = ZSTR_EMPTY_ALLOC();
  			return IS_STRING;
  		case IS_DOUBLE:
  			value->lval = zend_dval_to_lval(Z_DVAL_P(dim));
  			return IS_LONG;
  		case IS_RESOURCE:
  			zend_use_resource_as_offset(dim);
  			value->lval = Z_RES_HANDLE_P(dim);
  			return IS_LONG;
  		case IS_FALSE:
  			value->lval = 0;
  			return IS_LONG;
  		case IS_TRUE:
  			value->lval = 1;
  			return IS_LONG;
  		default:
  			zend_illegal_offset();
  			return IS_NULL;
  	}
  }
  
  static zend_always_inline zval *zend_fetch_dimension_address_inner(HashTable *ht, const zval *dim, int dim_type, int type EXECUTE_DATA_DC)
  {
  	zval *retval = NULL;
  	zend_string *offset_key;
  	zend_ulong hval;
  
  try_again:
  	if (EXPECTED(Z_TYPE_P(dim) == IS_LONG)) {
  		hval = Z_LVAL_P(dim);
  num_index:
  		ZEND_HASH_INDEX_FIND(ht, hval, retval, num_undef);
  		return retval;
  num_undef:
  		switch (type) {
  			case BP_VAR_R:
  				zend_undefined_offset(hval);
  				/* break missing intentionally */
  			case BP_VAR_UNSET:
  			case BP_VAR_IS:
  				retval = &EG(uninitialized_zval);
  				break;
  			case BP_VAR_RW:
  				if (UNEXPECTED(zend_undefined_offset_write(ht, hval) == FAILURE)) {
  					return NULL;
  				}
  				/* break missing intentionally */
  			case BP_VAR_W:
  				retval = zend_hash_index_add_new(ht, hval, &EG(uninitialized_zval));
  				break;
  		}
  	} else if (EXPECTED(Z_TYPE_P(dim) == IS_STRING)) {
  		offset_key = Z_STR_P(dim);
  		if (ZEND_CONST_COND(dim_type != IS_CONST, 1)) {
  			if (ZEND_HANDLE_NUMERIC(offset_key, hval)) {
  				goto num_index;
  			}
  		}
  str_index:
  		retval = zend_hash_find_ex(ht, offset_key, ZEND_CONST_COND(dim_type == IS_CONST, 0));
  		if (retval) {
  			/* support for $GLOBALS[...] */
  			if (UNEXPECTED(Z_TYPE_P(retval) == IS_INDIRECT)) {
  				retval = Z_INDIRECT_P(retval);
  				if (UNEXPECTED(Z_TYPE_P(retval) == IS_UNDEF)) {
  					switch (type) {
  						case BP_VAR_R:
  							zend_undefined_index(offset_key);
  							/* break missing intentionally */
  						case BP_VAR_UNSET:
  						case BP_VAR_IS:
  							retval = &EG(uninitialized_zval);
  							break;
  						case BP_VAR_RW:
  							if (UNEXPECTED(zend_undefined_index_write(ht, offset_key))) {
  								return NULL;
  							}
  							/* break missing intentionally */
  						case BP_VAR_W:
  							ZVAL_NULL(retval);
  							break;
  					}
  				}
  			}
  		} else {
  			switch (type) {
  				case BP_VAR_R:
  					zend_undefined_index(offset_key);
  					/* break missing intentionally */
  				case BP_VAR_UNSET:
  				case BP_VAR_IS:
  					retval = &EG(uninitialized_zval);
  					break;
  				case BP_VAR_RW:
  					/* Key may be released while throwing the undefined index warning. */
  					zend_string_addref(offset_key);
  					if (UNEXPECTED(zend_undefined_index_write(ht, offset_key) == FAILURE)) {
  						zend_string_release(offset_key);
  						return NULL;
  					}
  					retval = zend_hash_add_new(ht, offset_key, &EG(uninitialized_zval));
  					zend_string_release(offset_key);
  					break;
  				case BP_VAR_W:
  					retval = zend_hash_add_new(ht, offset_key, &EG(uninitialized_zval));
  					break;
  			}
  		}
  	} else if (EXPECTED(Z_TYPE_P(dim) == IS_REFERENCE)) {
  		dim = Z_REFVAL_P(dim);
  		goto try_again;
  	} else {
  		zend_value val;
  		zend_uchar t = slow_index_convert(ht, dim, &val EXECUTE_DATA_CC);
  
  		if (t == IS_STRING) {
  			offset_key = val.str;
  			goto str_index;
  		} else if (t == IS_LONG) {
  			hval = val.lval;
  			goto num_index;
  		} else {
  			retval = (type == BP_VAR_W || type == BP_VAR_RW) ?
  					NULL : &EG(uninitialized_zval);
  		}
  	}
  	return retval;
  }
  
  static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_W(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
  {
  	return zend_fetch_dimension_address_inner(ht, dim, IS_TMP_VAR, BP_VAR_W EXECUTE_DATA_CC);
  }
  
  static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_W_CONST(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
  {
  	return zend_fetch_dimension_address_inner(ht, dim, IS_CONST, BP_VAR_W EXECUTE_DATA_CC);
  }
  
  static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_RW(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
  {
  	return zend_fetch_dimension_address_inner(ht, dim, IS_TMP_VAR, BP_VAR_RW EXECUTE_DATA_CC);
  }
  
  static zend_never_inline zval* ZEND_FASTCALL zend_fetch_dimension_address_inner_RW_CONST(HashTable *ht, const zval *dim EXECUTE_DATA_DC)
  {
  	return zend_fetch_dimension_address_inner(ht, dim, IS_CONST, BP_VAR_RW EXECUTE_DATA_CC);
  }
  
  static zend_always_inline void zend_fetch_dimension_address(zval *result, zval *container, zval *dim, int dim_type, int type EXECUTE_DATA_DC)
  {
  	zval *retval;
  
  	if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
  try_array:
  		SEPARATE_ARRAY(container);
  fetch_from_array:
  		if (dim == NULL) {
  			retval = zend_hash_next_index_insert(Z_ARRVAL_P(container), &EG(uninitialized_zval));
  			if (UNEXPECTED(retval == NULL)) {
  				zend_cannot_add_element();
  				ZVAL_UNDEF(result);
  				return;
  			}
  		} else {
  			retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type EXECUTE_DATA_CC);
  			if (UNEXPECTED(!retval)) {
  				/* This may fail without throwing if the array was modified while throwing an
  				 * undefined index error. */
  				ZVAL_NULL(result);
  				return;
  			}
  		}
  		ZVAL_INDIRECT(result, retval);
  		return;
  	} else if (EXPECTED(Z_TYPE_P(container) == IS_REFERENCE)) {
  		zend_reference *ref = Z_REF_P(container);
  		container = Z_REFVAL_P(container);
  		if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
  			goto try_array;
  		} else if (EXPECTED(Z_TYPE_P(container) <= IS_FALSE)) {
  			if (type != BP_VAR_UNSET) {
  				if (ZEND_REF_HAS_TYPE_SOURCES(ref)) {
  					if (UNEXPECTED(!zend_verify_ref_array_assignable(ref))) {
  						ZVAL_UNDEF(result);
  						return;
  					}
  				}
  				array_init(container);
  				goto fetch_from_array;
  			} else {
  				goto return_null;
  			}
  		}
  	}
  	if (UNEXPECTED(Z_TYPE_P(container) == IS_STRING)) {
  		if (dim == NULL) {
  			zend_use_new_element_for_string();
  		} else {
  			zend_check_string_offset(dim, type EXECUTE_DATA_CC);
  			zend_wrong_string_offset(EXECUTE_DATA_C);
  		}
  		ZVAL_UNDEF(result);
  	} else if (EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
  		if (ZEND_CONST_COND(dim_type == IS_CV, dim != NULL) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
  			dim = ZVAL_UNDEFINED_OP2();
  		}
  		if (dim_type == IS_CONST && Z_EXTRA_P(dim) == ZEND_EXTRA_VALUE) {
  			dim++;
  		}
  		retval = Z_OBJ_HT_P(container)->read_dimension(Z_OBJ_P(container), dim, type, result);
  
  		if (UNEXPECTED(retval == &EG(uninitialized_zval))) {
  			zend_class_entry *ce = Z_OBJCE_P(container);
  
  			ZVAL_NULL(result);
  			zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
  		} else if (EXPECTED(retval && Z_TYPE_P(retval) != IS_UNDEF)) {
  			if (!Z_ISREF_P(retval)) {
  				if (result != retval) {
  					ZVAL_COPY(result, retval);
  					retval = result;
  				}
  				if (Z_TYPE_P(retval) != IS_OBJECT) {
  					zend_class_entry *ce = Z_OBJCE_P(container);
  					zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ZSTR_VAL(ce->name));
  				}
  			} else if (UNEXPECTED(Z_REFCOUNT_P(retval) == 1)) {
  				ZVAL_UNREF(retval);
  			}
  			if (result != retval) {
  				ZVAL_INDIRECT(result, retval);
  			}
  		} else {
  			ZEND_ASSERT(EG(exception) && "read_dimension() returned NULL without exception");
  			ZVAL_UNDEF(result);
  		}
  	} else {
  		if (EXPECTED(Z_TYPE_P(container) <= IS_FALSE)) {
  			if (type != BP_VAR_W && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
  				ZVAL_UNDEFINED_OP1();
  			}
  			if (type != BP_VAR_UNSET) {
  				array_init(container);
  				goto fetch_from_array;
  			} else {
  return_null:
  				/* for read-mode only */
  				if (ZEND_CONST_COND(dim_type == IS_CV, dim != NULL) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
  					ZVAL_UNDEFINED_OP2();
  				}
  				ZVAL_NULL(result);
  			}
  		} else {
  			if (type == BP_VAR_UNSET) {
  				zend_throw_error(NULL, "Cannot unset offset in a non-array variable");
  				ZVAL_UNDEF(result);
  			} else {
  				zend_use_scalar_as_array();
  				ZVAL_UNDEF(result);
  			}
  		}
  	}
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_W(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_W EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_RW(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_RW EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_UNSET(zval *container_ptr, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address(result, container_ptr, dim, dim_type, BP_VAR_UNSET EXECUTE_DATA_CC);
  }
  
  static zend_always_inline void zend_fetch_dimension_address_read(zval *result, zval *container, zval *dim, int dim_type, int type, int is_list, int slow EXECUTE_DATA_DC)
  {
  	zval *retval;
  
  	if (!slow) {
  		if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
  try_array:
  			retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type EXECUTE_DATA_CC);
  			ZVAL_COPY_DEREF(result, retval);
  			return;
  		} else if (EXPECTED(Z_TYPE_P(container) == IS_REFERENCE)) {
  			container = Z_REFVAL_P(container);
  			if (EXPECTED(Z_TYPE_P(container) == IS_ARRAY)) {
  				goto try_array;
  			}
  		}
  	}
  	if (!is_list && EXPECTED(Z_TYPE_P(container) == IS_STRING)) {
  		zend_long offset;
  
  try_string_offset:
  		if (UNEXPECTED(Z_TYPE_P(dim) != IS_LONG)) {
  			switch (Z_TYPE_P(dim)) {
  				/* case IS_LONG: */
  				case IS_STRING:
  					if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
  						break;
  					}
  					if (type == BP_VAR_IS) {
  						ZVAL_NULL(result);
  						return;
  					}
  					zend_error(E_WARNING, "Illegal string offset \"%s\"", Z_STRVAL_P(dim));
  					break;
  				case IS_UNDEF:
  					ZVAL_UNDEFINED_OP2();
  				case IS_DOUBLE:
  				case IS_NULL:
  				case IS_FALSE:
  				case IS_TRUE:
  					if (type != BP_VAR_IS) {
  						zend_error(E_WARNING, "String offset cast occurred");
  					}
  					break;
  				case IS_REFERENCE:
  					dim = Z_REFVAL_P(dim);
  					goto try_string_offset;
  				default:
  					zend_illegal_offset();
  					break;
  			}
  
  			offset = zval_get_long_func(dim);
  		} else {
  			offset = Z_LVAL_P(dim);
  		}
  
  		if (UNEXPECTED(Z_STRLEN_P(container) < ((offset < 0) ? -(size_t)offset : ((size_t)offset + 1)))) {
  			if (type != BP_VAR_IS) {
  				zend_error(E_WARNING, "Uninitialized string offset " ZEND_LONG_FMT, offset);
  				ZVAL_EMPTY_STRING(result);
  			} else {
  				ZVAL_NULL(result);
  			}
  		} else {
  			zend_uchar c;
  			zend_long real_offset;
  
  			real_offset = (UNEXPECTED(offset < 0)) /* Handle negative offset */
  				? (zend_long)Z_STRLEN_P(container) + offset : offset;
  			c = (zend_uchar)Z_STRVAL_P(container)[real_offset];
  
  			ZVAL_CHAR(result, c);
  		}
  	} else if (EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
  		if (ZEND_CONST_COND(dim_type == IS_CV, 1) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
  			dim = ZVAL_UNDEFINED_OP2();
  		}
  		if (dim_type == IS_CONST && Z_EXTRA_P(dim) == ZEND_EXTRA_VALUE) {
  			dim++;
  		}
  		retval = Z_OBJ_HT_P(container)->read_dimension(Z_OBJ_P(container), dim, type, result);
  
  		ZEND_ASSERT(result != NULL);
  		if (retval) {
  			if (result != retval) {
  				ZVAL_COPY_DEREF(result, retval);
  			} else if (UNEXPECTED(Z_ISREF_P(retval))) {
  				zend_unwrap_reference(result);
  			}
  		} else {
  			ZVAL_NULL(result);
  		}
  	} else {
  		if (type != BP_VAR_IS && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
  			container = ZVAL_UNDEFINED_OP1();
  		}
  		if (ZEND_CONST_COND(dim_type == IS_CV, 1) && UNEXPECTED(Z_TYPE_P(dim) == IS_UNDEF)) {
  			ZVAL_UNDEFINED_OP2();
  		}
  		if (!is_list && type != BP_VAR_IS) {
  			zend_error(E_WARNING, "Trying to access array offset on value of type %s",
  				zend_zval_type_name(container));
  		}
  		ZVAL_NULL(result);
  	}
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_read_R(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_R, 0, 0 EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void zend_fetch_dimension_address_read_R_slow(zval *container, zval *dim OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address_read(result, container, dim, IS_CV, BP_VAR_R, 0, 1 EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_read_IS(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_IS, 0, 0 EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void ZEND_FASTCALL zend_fetch_dimension_address_LIST_r(zval *container, zval *dim, int dim_type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  	zend_fetch_dimension_address_read(result, container, dim, dim_type, BP_VAR_R, 1, 0 EXECUTE_DATA_CC);
  }
  
  ZEND_API void zend_fetch_dimension_const(zval *result, zval *container, zval *dim, int type)
  {
  	zend_fetch_dimension_address_read(result, container, dim, IS_TMP_VAR, type, 0, 0 NO_EXECUTE_DATA_CC);
  }
  
  static zend_never_inline zval* ZEND_FASTCALL zend_find_array_dim_slow(HashTable *ht, zval *offset EXECUTE_DATA_DC)
  {
  	zend_ulong hval;
  
  	if (Z_TYPE_P(offset) == IS_DOUBLE) {
  		hval = zend_dval_to_lval(Z_DVAL_P(offset));
  num_idx:
  		return zend_hash_index_find(ht, hval);
  	} else if (Z_TYPE_P(offset) == IS_NULL) {
  str_idx:
  		return zend_hash_find_ex_ind(ht, ZSTR_EMPTY_ALLOC(), 1);
  	} else if (Z_TYPE_P(offset) == IS_FALSE) {
  		hval = 0;
  		goto num_idx;
  	} else if (Z_TYPE_P(offset) == IS_TRUE) {
  		hval = 1;
  		goto num_idx;
  	} else if (Z_TYPE_P(offset) == IS_RESOURCE) {
  		zend_use_resource_as_offset(offset);
  		hval = Z_RES_HANDLE_P(offset);
  		goto num_idx;
  	} else if (/*OP2_TYPE == IS_CV &&*/ Z_TYPE_P(offset) == IS_UNDEF) {
  		ZVAL_UNDEFINED_OP2();
  		goto str_idx;
  	} else {
  		zend_type_error("Illegal offset type in isset or empty");
  		return NULL;
  	}
  }
  
  static zend_never_inline int ZEND_FASTCALL zend_isset_dim_slow(zval *container, zval *offset EXECUTE_DATA_DC)
  {
  	if (/*OP2_TYPE == IS_CV &&*/ UNEXPECTED(Z_TYPE_P(offset) == IS_UNDEF)) {
  		offset = ZVAL_UNDEFINED_OP2();
  	}
  
  	if (/*OP1_TYPE != IS_CONST &&*/ EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
  		return Z_OBJ_HT_P(container)->has_dimension(Z_OBJ_P(container), offset, 0);
  	} else if (EXPECTED(Z_TYPE_P(container) == IS_STRING)) { /* string offsets */
  		zend_long lval;
  
  		if (EXPECTED(Z_TYPE_P(offset) == IS_LONG)) {
  			lval = Z_LVAL_P(offset);
  str_offset:
  			if (UNEXPECTED(lval < 0)) { /* Handle negative offset */
  				lval += (zend_long)Z_STRLEN_P(container);
  			}
  			if (EXPECTED(lval >= 0) && (size_t)lval < Z_STRLEN_P(container)) {
  				return 1;
  			} else {
  				return 0;
  			}
  		} else {
  			/*if (OP2_TYPE & (IS_CV|IS_VAR)) {*/
  				ZVAL_DEREF(offset);
  			/*}*/
  			if (Z_TYPE_P(offset) < IS_STRING /* simple scalar types */
  					|| (Z_TYPE_P(offset) == IS_STRING /* or numeric string */
  						&& IS_LONG == is_numeric_string(Z_STRVAL_P(offset), Z_STRLEN_P(offset), NULL, NULL, 0))) {
  				lval = zval_get_long(offset);
  				goto str_offset;
  			}
  			return 0;
  		}
  	} else {
  		return 0;
  	}
  }
  
  static zend_never_inline int ZEND_FASTCALL zend_isempty_dim_slow(zval *container, zval *offset EXECUTE_DATA_DC)
  {
  	if (/*OP2_TYPE == IS_CV &&*/ UNEXPECTED(Z_TYPE_P(offset) == IS_UNDEF)) {
  		offset = ZVAL_UNDEFINED_OP2();
  	}
  
  	if (/*OP1_TYPE != IS_CONST &&*/ EXPECTED(Z_TYPE_P(container) == IS_OBJECT)) {
  		return !Z_OBJ_HT_P(container)->has_dimension(Z_OBJ_P(container), offset, 1);
  	} else if (EXPECTED(Z_TYPE_P(container) == IS_STRING)) { /* string offsets */
  		zend_long lval;
  
  		if (EXPECTED(Z_TYPE_P(offset) == IS_LONG)) {
  			lval = Z_LVAL_P(offset);
  str_offset:
  			if (UNEXPECTED(lval < 0)) { /* Handle negative offset */
  				lval += (zend_long)Z_STRLEN_P(container);
  			}
  			if (EXPECTED(lval >= 0) && (size_t)lval < Z_STRLEN_P(container)) {
  				return (Z_STRVAL_P(container)[lval] == '0');
  			} else {
  				return 1;
  			}
  		} else {
  			/*if (OP2_TYPE & (IS_CV|IS_VAR)) {*/
  				ZVAL_DEREF(offset);
  			/*}*/
  			if (Z_TYPE_P(offset) < IS_STRING /* simple scalar types */
  					|| (Z_TYPE_P(offset) == IS_STRING /* or numeric string */
  						&& IS_LONG == is_numeric_string(Z_STRVAL_P(offset), Z_STRLEN_P(offset), NULL, NULL, 0))) {
  				lval = zval_get_long(offset);
  				goto str_offset;
  			}
  			return 1;
  		}
  	} else {
  		return 1;
  	}
  }
  
  static zend_never_inline zend_bool ZEND_FASTCALL zend_array_key_exists_fast(HashTable *ht, zval *key OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_string *str;
  	zend_ulong hval;
  
  try_again:
  	if (EXPECTED(Z_TYPE_P(key) == IS_STRING)) {
  		str = Z_STR_P(key);
  		if (ZEND_HANDLE_NUMERIC(str, hval)) {
  			goto num_key;
  		}
  str_key:
  		return zend_hash_find_ind(ht, str) != NULL;
  	} else if (EXPECTED(Z_TYPE_P(key) == IS_LONG)) {
  		hval = Z_LVAL_P(key);
  num_key:
  		return zend_hash_index_find(ht, hval) != NULL;
  	} else if (EXPECTED(Z_ISREF_P(key))) {
  		key = Z_REFVAL_P(key);
  		goto try_again;
  	} else if (Z_TYPE_P(key) == IS_DOUBLE) {
  		hval = zend_dval_to_lval(Z_DVAL_P(key));
  		goto num_key;
  	} else if (Z_TYPE_P(key) == IS_FALSE) {
  		hval = 0;
  		goto num_key;
  	} else if (Z_TYPE_P(key) == IS_TRUE) {
  		hval = 1;
  		goto num_key;
  	} else if (Z_TYPE_P(key) == IS_RESOURCE) {
  		zend_use_resource_as_offset(key);
  		hval = Z_RES_HANDLE_P(key);
  		goto num_key;
  	} else if (Z_TYPE_P(key) <= IS_NULL) {
  		if (UNEXPECTED(Z_TYPE_P(key) == IS_UNDEF)) {
  			ZVAL_UNDEFINED_OP1();
  		}
  		str = ZSTR_EMPTY_ALLOC();
  		goto str_key;
  	} else {
  		zend_illegal_offset();
  		return 0;
  	}
  }
  
  static ZEND_COLD void ZEND_FASTCALL zend_array_key_exists_error(
  		zval *subject, zval *key OPLINE_DC EXECUTE_DATA_DC)
  {
  	if (Z_TYPE_P(key) == IS_UNDEF) {
  		ZVAL_UNDEFINED_OP1();
  	}
  	if (Z_TYPE_P(subject) == IS_UNDEF) {
  		ZVAL_UNDEFINED_OP2();
  	}
  	if (!EG(exception)) {
  		zend_type_error("array_key_exists(): Argument #2 ($array) must be of type array, %s given",
  			zend_zval_type_name(subject));
  	}
  }
  
  static zend_always_inline zend_bool promotes_to_array(zval *val) {
  	return Z_TYPE_P(val) <= IS_FALSE
  		|| (Z_ISREF_P(val) && Z_TYPE_P(Z_REFVAL_P(val)) <= IS_FALSE);
  }
  
  static zend_always_inline zend_bool check_type_array_assignable(zend_type type) {
  	if (!ZEND_TYPE_IS_SET(type)) {
  		return 1;
  	}
  	return (ZEND_TYPE_FULL_MASK(type) & (MAY_BE_ITERABLE|MAY_BE_ARRAY)) != 0;
  }
  
  /* Checks whether an array can be assigned to the reference. Throws error if not assignable. */
  ZEND_API zend_bool zend_verify_ref_array_assignable(zend_reference *ref) {
  	zend_property_info *prop;
  	ZEND_ASSERT(ZEND_REF_HAS_TYPE_SOURCES(ref));
  	ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
  		if (!check_type_array_assignable(prop->type)) {
  			zend_throw_auto_init_in_ref_error(prop, "array");
  			return 0;
  		}
  	} ZEND_REF_FOREACH_TYPE_SOURCES_END();
  	return 1;
  }
  
  static zend_property_info *zend_object_fetch_property_type_info(
  		zend_object *obj, zval *slot)
  {
  	if (EXPECTED(!ZEND_CLASS_HAS_TYPE_HINTS(obj->ce))) {
  		return NULL;
  	}
  
  	/* Not a declared property */
  	if (UNEXPECTED(slot < obj->properties_table ||
  			slot >= obj->properties_table + obj->ce->default_properties_count)) {
  		return NULL;
  	}
  
  	return zend_get_typed_property_info_for_slot(obj, slot);
  }
  
  static zend_never_inline zend_bool zend_handle_fetch_obj_flags(
  		zval *result, zval *ptr, zend_object *obj, zend_property_info *prop_info, uint32_t flags)
  {
  	switch (flags) {
  		case ZEND_FETCH_DIM_WRITE:
  			if (promotes_to_array(ptr)) {
  				if (!prop_info) {
  					prop_info = zend_object_fetch_property_type_info(obj, ptr);
  					if (!prop_info) {
  						break;
  					}
  				}
  				if (!check_type_array_assignable(prop_info->type)) {
  					zend_throw_auto_init_in_prop_error(prop_info, "array");
  					if (result) ZVAL_ERROR(result);
  					return 0;
  				}
  			}
  			break;
  		case ZEND_FETCH_REF:
  			if (Z_TYPE_P(ptr) != IS_REFERENCE) {
  				if (!prop_info) {
  					prop_info = zend_object_fetch_property_type_info(obj, ptr);
  					if (!prop_info) {
  						break;
  					}
  				}
  				if (Z_TYPE_P(ptr) == IS_UNDEF) {
  					if (!ZEND_TYPE_ALLOW_NULL(prop_info->type)) {
  						zend_throw_access_uninit_prop_by_ref_error(prop_info);
  						if (result) ZVAL_ERROR(result);
  						return 0;
  					}
  					ZVAL_NULL(ptr);
  				}
  
  				ZVAL_NEW_REF(ptr, ptr);
  				ZEND_REF_ADD_TYPE_SOURCE(Z_REF_P(ptr), prop_info);
  			}
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE()
  	}
  	return 1;
  }
  
  static zend_always_inline void zend_fetch_property_address(zval *result, zval *container, uint32_t container_op_type, zval *prop_ptr, uint32_t prop_op_type, void **cache_slot, int type, uint32_t flags, zend_bool init_undef OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *ptr;
  	zend_object *zobj;
  	zend_string *name, *tmp_name;
  
      if (container_op_type != IS_UNUSED && UNEXPECTED(Z_TYPE_P(container) != IS_OBJECT)) {
  		do {
  			if (Z_ISREF_P(container) && Z_TYPE_P(Z_REFVAL_P(container)) == IS_OBJECT) {
  				container = Z_REFVAL_P(container);
  				break;
  			}
  
  			if (container_op_type == IS_CV
  			 && type != BP_VAR_W
  			 && UNEXPECTED(Z_TYPE_P(container) == IS_UNDEF)) {
  				ZVAL_UNDEFINED_OP1();
  			}
  
  			/* this should modify object only if it's empty */
  			if (type == BP_VAR_UNSET) {
  				ZVAL_NULL(result);
  				return;
  			}
  
  			zend_throw_non_object_error(container, prop_ptr OPLINE_CC EXECUTE_DATA_CC);
  			ZVAL_ERROR(result);
  			return;
  		} while (0);
  	}
  
  	zobj = Z_OBJ_P(container);
  	if (prop_op_type == IS_CONST &&
  	    EXPECTED(zobj->ce == CACHED_PTR_EX(cache_slot))) {
  		uintptr_t prop_offset = (uintptr_t)CACHED_PTR_EX(cache_slot + 1);
  
  		if (EXPECTED(IS_VALID_PROPERTY_OFFSET(prop_offset))) {
  			ptr = OBJ_PROP(zobj, prop_offset);
  			if (EXPECTED(Z_TYPE_P(ptr) != IS_UNDEF)) {
  				ZVAL_INDIRECT(result, ptr);
  				if (flags) {
  					zend_property_info *prop_info = CACHED_PTR_EX(cache_slot + 2);
  					if (prop_info) {
  						zend_handle_fetch_obj_flags(result, ptr, NULL, prop_info, flags);
  					}
  				}
  				return;
  			}
  		} else if (EXPECTED(zobj->properties != NULL)) {
  			if (UNEXPECTED(GC_REFCOUNT(zobj->properties) > 1)) {
  				if (EXPECTED(!(GC_FLAGS(zobj->properties) & IS_ARRAY_IMMUTABLE))) {
  					GC_DELREF(zobj->properties);
  				}
  				zobj->properties = zend_array_dup(zobj->properties);
  			}
  			ptr = zend_hash_find_ex(zobj->properties, Z_STR_P(prop_ptr), 1);
  			if (EXPECTED(ptr)) {
  				ZVAL_INDIRECT(result, ptr);
  				return;
  			}
  		}
  	}
  
  	if (prop_op_type == IS_CONST) {
  		name = Z_STR_P(prop_ptr);
  	} else {
  		name = zval_get_tmp_string(prop_ptr, &tmp_name);
  	}
  	ptr = zobj->handlers->get_property_ptr_ptr(zobj, name, type, cache_slot);
  	if (NULL == ptr) {
  		ptr = zobj->handlers->read_property(zobj, name, type, cache_slot, result);
  		if (ptr == result) {
  			if (UNEXPECTED(Z_ISREF_P(ptr) && Z_REFCOUNT_P(ptr) == 1)) {
  				ZVAL_UNREF(ptr);
  			}
  			goto end;
  		}
  	} else if (UNEXPECTED(Z_ISERROR_P(ptr))) {
  		ZVAL_ERROR(result);
  		goto end;
  	}
  
  	ZVAL_INDIRECT(result, ptr);
  	if (flags) {
  		zend_property_info *prop_info;
  
  		if (prop_op_type == IS_CONST) {
  			prop_info = CACHED_PTR_EX(cache_slot + 2);
  			if (prop_info) {
  				if (UNEXPECTED(!zend_handle_fetch_obj_flags(result, ptr, NULL, prop_info, flags))) {
  					goto end;
  				}
  			}
  		} else {
  			if (UNEXPECTED(!zend_handle_fetch_obj_flags(result, ptr, Z_OBJ_P(container), NULL, flags))) {
  				goto end;
  			}
  		}
  	}
  	if (init_undef && UNEXPECTED(Z_TYPE_P(ptr) == IS_UNDEF)) {
  		ZVAL_NULL(ptr);
  	}
  
  end:
  	if (prop_op_type != IS_CONST) {
  		zend_tmp_string_release(tmp_name);
  	}
  }
  
  static zend_always_inline void zend_assign_to_property_reference(zval *container, uint32_t container_op_type, zval *prop_ptr, uint32_t prop_op_type, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval variable, *variable_ptr = &variable;
  	void **cache_addr = (prop_op_type == IS_CONST) ? CACHE_ADDR(opline->extended_value & ~ZEND_RETURNS_FUNCTION) : NULL;
  
  	zend_fetch_property_address(variable_ptr, container, container_op_type, prop_ptr, prop_op_type,
  		cache_addr, BP_VAR_W, 0, 0 OPLINE_CC EXECUTE_DATA_CC);
  
  	if (EXPECTED(Z_TYPE_P(variable_ptr) == IS_INDIRECT)) {
  		variable_ptr = Z_INDIRECT_P(variable_ptr);
  		if (/*OP_DATA_TYPE == IS_VAR &&*/
  				   (opline->extended_value & ZEND_RETURNS_FUNCTION) &&
  				   UNEXPECTED(!Z_ISREF_P(value_ptr))) {
  
  			if (UNEXPECTED(!zend_wrong_assign_to_variable_reference(
  					variable_ptr, value_ptr OPLINE_CC EXECUTE_DATA_CC))) {
  				variable_ptr = &EG(uninitialized_zval);
  			}
  		} else {
  			zend_property_info *prop_info = NULL;
  
  			if (prop_op_type == IS_CONST) {
  				prop_info = (zend_property_info *) CACHED_PTR_EX(cache_addr + 2);
  			} else {
  				ZVAL_DEREF(container);
  				prop_info = zend_object_fetch_property_type_info(Z_OBJ_P(container), variable_ptr);
  			}
  
  			if (UNEXPECTED(prop_info)) {
  				variable_ptr = zend_assign_to_typed_property_reference(prop_info, variable_ptr, value_ptr EXECUTE_DATA_CC);
  			} else {
  				zend_assign_to_variable_reference(variable_ptr, value_ptr);
  			}
  		}
  	} else if (Z_ISERROR_P(variable_ptr)) {
  		variable_ptr = &EG(uninitialized_zval);
  	} else {
  		zend_throw_error(NULL, "Cannot assign by reference to overloaded object");
  		zval_ptr_dtor(&variable);
  		variable_ptr = &EG(uninitialized_zval);
  	}
  
  	if (UNEXPECTED(RETURN_VALUE_USED(opline))) {
  		ZVAL_COPY(EX_VAR(opline->result.var), variable_ptr);
  	}
  }
  
  static zend_never_inline void zend_assign_to_property_reference_this_const(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_assign_to_property_reference(container, IS_UNUSED, prop_ptr, IS_CONST, value_ptr
  		OPLINE_CC EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void zend_assign_to_property_reference_var_const(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_assign_to_property_reference(container, IS_VAR, prop_ptr, IS_CONST, value_ptr
  		OPLINE_CC EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void zend_assign_to_property_reference_this_var(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_assign_to_property_reference(container, IS_UNUSED, prop_ptr, IS_VAR, value_ptr
  		OPLINE_CC EXECUTE_DATA_CC);
  }
  
  static zend_never_inline void zend_assign_to_property_reference_var_var(zval *container, zval *prop_ptr, zval *value_ptr OPLINE_DC EXECUTE_DATA_DC)
  {
  	zend_assign_to_property_reference(container, IS_VAR, prop_ptr, IS_VAR, value_ptr
  		OPLINE_CC EXECUTE_DATA_CC);
  }
  
  static zend_never_inline int zend_fetch_static_property_address_ex(zval **retval, zend_property_info **prop_info, uint32_t cache_slot, int fetch_type OPLINE_DC EXECUTE_DATA_DC) {
  	zend_string *name;
  	zend_class_entry *ce;
  	zend_property_info *property_info;
  
  	zend_uchar op1_type = opline->op1_type, op2_type = opline->op2_type;
  
  	if (EXPECTED(op2_type == IS_CONST)) {
  		zval *class_name = RT_CONSTANT(opline, opline->op2);
  
  		ZEND_ASSERT(op1_type != IS_CONST || CACHED_PTR(cache_slot) == NULL);
  
  		if (EXPECTED((ce = CACHED_PTR(cache_slot)) == NULL)) {
  			ce = zend_fetch_class_by_name(Z_STR_P(class_name), Z_STR_P(class_name + 1), ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
  			if (UNEXPECTED(ce == NULL)) {
  				FREE_OP(op1_type, opline->op1.var);
  				return FAILURE;
  			}
  			if (UNEXPECTED(op1_type != IS_CONST)) {
  				CACHE_PTR(cache_slot, ce);
  			}
  		}
  	} else {
  		if (EXPECTED(op2_type == IS_UNUSED)) {
  			ce = zend_fetch_class(NULL, opline->op2.num);
  			if (UNEXPECTED(ce == NULL)) {
  				FREE_OP(op1_type, opline->op1.var);
  				return FAILURE;
  			}
  		} else {
  			ce = Z_CE_P(EX_VAR(opline->op2.var));
  		}
  		if (EXPECTED(op1_type == IS_CONST) && EXPECTED(CACHED_PTR(cache_slot) == ce)) {
  			*retval = CACHED_PTR(cache_slot + sizeof(void *));
  			*prop_info = CACHED_PTR(cache_slot + sizeof(void *) * 2);
  			return SUCCESS;
  		}
  	}
  
  	if (EXPECTED(op1_type == IS_CONST)) {
  		name = Z_STR_P(RT_CONSTANT(opline, opline->op1));
  		*retval = zend_std_get_static_property_with_info(ce, name, fetch_type, &property_info);
  	} else {
  		zend_string *tmp_name;
  		zval *varname = get_zval_ptr_undef(opline->op1_type, opline->op1, BP_VAR_R);
  		if (EXPECTED(Z_TYPE_P(varname) == IS_STRING)) {
  			name = Z_STR_P(varname);
  			tmp_name = NULL;
  		} else {
  			if (op1_type == IS_CV && UNEXPECTED(Z_TYPE_P(varname) == IS_UNDEF)) {
  				zval_undefined_cv(opline->op1.var EXECUTE_DATA_CC);
  			}
  			name = zval_get_tmp_string(varname, &tmp_name);
  		}
  		*retval = zend_std_get_static_property_with_info(ce, name, fetch_type, &property_info);
  
  		if (UNEXPECTED(op1_type != IS_CONST)) {
  			zend_tmp_string_release(tmp_name);
  
  			FREE_OP(op1_type, opline->op1.var);
  		}
  	}
  
  	if (UNEXPECTED(*retval == NULL)) {
  		return FAILURE;
  	}
  
  	*prop_info = property_info;
  
  	if (EXPECTED(op1_type == IS_CONST)) {
  		CACHE_POLYMORPHIC_PTR(cache_slot, ce, *retval);
  		CACHE_PTR(cache_slot + sizeof(void *) * 2, property_info);
  	}
  
  	return SUCCESS;
  }
  
  
  static zend_always_inline int zend_fetch_static_property_address(zval **retval, zend_property_info **prop_info, uint32_t cache_slot, int fetch_type, int flags OPLINE_DC EXECUTE_DATA_DC) {
  	int success;
  	zend_property_info *property_info;
  
  	if (opline->op1_type == IS_CONST && (opline->op2_type == IS_CONST || (opline->op2_type == IS_UNUSED && (opline->op2.num == ZEND_FETCH_CLASS_SELF || opline->op2.num == ZEND_FETCH_CLASS_PARENT))) && EXPECTED(CACHED_PTR(cache_slot) != NULL)) {
  		*retval = CACHED_PTR(cache_slot + sizeof(void *));
  		property_info = CACHED_PTR(cache_slot + sizeof(void *) * 2);
  
  		if ((fetch_type == BP_VAR_R || fetch_type == BP_VAR_RW)
  				&& UNEXPECTED(Z_TYPE_P(*retval) == IS_UNDEF)
  				&& UNEXPECTED(ZEND_TYPE_IS_SET(property_info->type))) {
  			zend_throw_error(NULL, "Typed static property %s::$%s must not be accessed before initialization",
  				ZSTR_VAL(property_info->ce->name),
  				zend_get_unmangled_property_name(property_info->name));
  			return FAILURE;
  		}
  	} else {
  		success = zend_fetch_static_property_address_ex(retval, &property_info, cache_slot, fetch_type OPLINE_CC EXECUTE_DATA_CC);
  		if (UNEXPECTED(success != SUCCESS)) {
  			return FAILURE;
  		}
  	}
  
  	if (flags && ZEND_TYPE_IS_SET(property_info->type)) {
  		zend_handle_fetch_obj_flags(NULL, *retval, NULL, property_info, flags);
  	}
  
  	if (prop_info) {
  		*prop_info = property_info;
  	}
  
  	return SUCCESS;
  }
  
  ZEND_API ZEND_COLD void zend_throw_ref_type_error_type(zend_property_info *prop1, zend_property_info *prop2, zval *zv) {
  	zend_string *type1_str = zend_type_to_string(prop1->type);
  	zend_string *type2_str = zend_type_to_string(prop2->type);
  	zend_type_error("Reference with value of type %s held by property %s::$%s of type %s is not compatible with property %s::$%s of type %s",
  		zend_zval_type_name(zv),
  		ZSTR_VAL(prop1->ce->name),
  		zend_get_unmangled_property_name(prop1->name),
  		ZSTR_VAL(type1_str),
  		ZSTR_VAL(prop2->ce->name),
  		zend_get_unmangled_property_name(prop2->name),
  		ZSTR_VAL(type2_str)
  	);
  	zend_string_release(type1_str);
  	zend_string_release(type2_str);
  }
  
  ZEND_API ZEND_COLD void zend_throw_ref_type_error_zval(zend_property_info *prop, zval *zv) {
  	zend_string *type_str = zend_type_to_string(prop->type);
  	zend_type_error("Cannot assign %s to reference held by property %s::$%s of type %s",
  		zend_zval_type_name(zv),
  		ZSTR_VAL(prop->ce->name),
  		zend_get_unmangled_property_name(prop->name),
  		ZSTR_VAL(type_str)
  	);
  	zend_string_release(type_str);
  }
  
  ZEND_API ZEND_COLD void zend_throw_conflicting_coercion_error(zend_property_info *prop1, zend_property_info *prop2, zval *zv) {
  	zend_string *type1_str = zend_type_to_string(prop1->type);
  	zend_string *type2_str = zend_type_to_string(prop2->type);
  	zend_type_error("Cannot assign %s to reference held by property %s::$%s of type %s and property %s::$%s of type %s, as this would result in an inconsistent type conversion",
  		zend_zval_type_name(zv),
  		ZSTR_VAL(prop1->ce->name),
  		zend_get_unmangled_property_name(prop1->name),
  		ZSTR_VAL(type1_str),
  		ZSTR_VAL(prop2->ce->name),
  		zend_get_unmangled_property_name(prop2->name),
  		ZSTR_VAL(type2_str)
  	);
  	zend_string_release(type1_str);
  	zend_string_release(type2_str);
  }
  
  /* 1: valid, 0: invalid, -1: may be valid after type coercion */
  static zend_always_inline int i_zend_verify_type_assignable_zval(
  		zend_property_info *info, zval *zv, zend_bool strict) {
  	zend_type type = info->type;
  	uint32_t type_mask;
  	zend_uchar zv_type = Z_TYPE_P(zv);
  
  	if (EXPECTED(ZEND_TYPE_CONTAINS_CODE(type, zv_type))) {
  		return 1;
  	}
  
  	if (ZEND_TYPE_HAS_CLASS(type) && zv_type == IS_OBJECT
  			&& zend_check_and_resolve_property_class_type(info, Z_OBJCE_P(zv))) {
  		return 1;
  	}
  
  	type_mask = ZEND_TYPE_FULL_MASK(type);
  	ZEND_ASSERT(!(type_mask & (MAY_BE_CALLABLE|MAY_BE_STATIC)));
  	if (type_mask & MAY_BE_ITERABLE) {
  		return zend_is_iterable(zv);
  	}
  
  	/* SSTH Exception: IS_LONG may be accepted as IS_DOUBLE (converted) */
  	if (strict) {
  		if ((type_mask & MAY_BE_DOUBLE) && zv_type == IS_LONG) {
  			return -1;
  		}
  		return 0;
  	}
  
  	/* NULL may be accepted only by nullable hints (this is already checked) */
  	if (zv_type == IS_NULL) {
  		return 0;
  	}
  
  	/* Does not contain any type to which a coercion is possible */
  	if (!(type_mask & (MAY_BE_LONG|MAY_BE_DOUBLE|MAY_BE_STRING))
  			&& (type_mask & MAY_BE_BOOL) != MAY_BE_BOOL) {
  		return 0;
  	}
  
  	/* Coercion may be necessary, check separately */
  	return -1;
  }
  
  ZEND_API zend_bool ZEND_FASTCALL zend_verify_ref_assignable_zval(zend_reference *ref, zval *zv, zend_bool strict)
  {
  	zend_property_info *prop;
  
  	/* The value must satisfy each property type, and coerce to the same value for each property
  	 * type. Remember the first coerced type and value we've seen for this purpose. */
  	zend_property_info *first_prop = NULL;
  	zval coerced_value;
  	ZVAL_UNDEF(&coerced_value);
  
  	ZEND_ASSERT(Z_TYPE_P(zv) != IS_REFERENCE);
  	ZEND_REF_FOREACH_TYPE_SOURCES(ref, prop) {
  		int result = i_zend_verify_type_assignable_zval(prop, zv, strict);
  		if (result == 0) {
  type_error:
  			zend_throw_ref_type_error_zval(prop, zv);
  			zval_ptr_dtor(&coerced_value);
  			return 0;
  		}
  
  		if (result < 0) {
  			if (!first_prop) {
  				first_prop = prop;
  				ZVAL_COPY(&coerced_value, zv);
  				if (!zend_verify_weak_scalar_type_hint(
  						ZEND_TYPE_FULL_MASK(prop->type), &coerced_value)) {
  					goto type_error;
  				}
  			} else if (Z_ISUNDEF(coerced_value)) {
  				/* A previous property did not require coercion, but this one does,
  				 * so they are incompatible. */
  				goto conflicting_coercion_error;
  			} else {
  				zval tmp;
  				ZVAL_COPY(&tmp, zv);
  				if (!zend_verify_weak_scalar_type_hint(ZEND_TYPE_FULL_MASK(prop->type), &tmp)) {
  					zval_ptr_dtor(&tmp);
  					goto type_error;
  				}
  				if (!zend_is_identical(&coerced_value, &tmp)) {
  					zval_ptr_dtor(&tmp);
  					goto conflicting_coercion_error;
  				}
  			}
  		} else {
  			if (!first_prop) {
  				first_prop = prop;
  			} else if (!Z_ISUNDEF(coerced_value)) {
  				/* A previous property required coercion, but this one doesn't,
  				 * so they are incompatible. */
  conflicting_coercion_error:
  				zend_throw_conflicting_coercion_error(first_prop, prop, zv);
  				zval_ptr_dtor(&coerced_value);
  				return 0;
  			}
  		}
  	} ZEND_REF_FOREACH_TYPE_SOURCES_END();
  
  	if (!Z_ISUNDEF(coerced_value)) {
  		zval_ptr_dtor(zv);
  		ZVAL_COPY_VALUE(zv, &coerced_value);
  	}
  
  	return 1;
  }
  
  static zend_always_inline void i_zval_ptr_dtor_noref(zval *zval_ptr) {
  	if (Z_REFCOUNTED_P(zval_ptr)) {
  		zend_refcounted *ref = Z_COUNTED_P(zval_ptr);
  		ZEND_ASSERT(Z_TYPE_P(zval_ptr) != IS_REFERENCE);
  		if (!GC_DELREF(ref)) {
  			rc_dtor_func(ref);
  		} else if (UNEXPECTED(GC_MAY_LEAK(ref))) {
  			gc_possible_root(ref);
  		}
  	}
  }
  
  ZEND_API zval* zend_assign_to_typed_ref(zval *variable_ptr, zval *orig_value, zend_uchar value_type, zend_bool strict)
  {
  	zend_bool ret;
  	zval value;
  	zend_refcounted *ref = NULL;
  
  	if (Z_ISREF_P(orig_value)) {
  		ref = Z_COUNTED_P(orig_value);
  		orig_value = Z_REFVAL_P(orig_value);
  	}
  
  	ZVAL_COPY(&value, orig_value);
  	ret = zend_verify_ref_assignable_zval(Z_REF_P(variable_ptr), &value, strict);
  	variable_ptr = Z_REFVAL_P(variable_ptr);
  	if (EXPECTED(ret)) {
  		i_zval_ptr_dtor_noref(variable_ptr);
  		ZVAL_COPY_VALUE(variable_ptr, &value);
  	} else {
  		zval_ptr_dtor_nogc(&value);
  	}
  	if (value_type & (IS_VAR|IS_TMP_VAR)) {
  		if (UNEXPECTED(ref)) {
  			if (UNEXPECTED(GC_DELREF(ref) == 0)) {
  				zval_ptr_dtor(orig_value);
  				efree_size(ref, sizeof(zend_reference));
  			}
  		} else {
  			i_zval_ptr_dtor_noref(orig_value);
  		}
  	}
  	return variable_ptr;
  }
  
  ZEND_API zend_bool ZEND_FASTCALL zend_verify_prop_assignable_by_ref(zend_property_info *prop_info, zval *orig_val, zend_bool strict) {
  	zval *val = orig_val;
  	if (Z_ISREF_P(val) && ZEND_REF_HAS_TYPE_SOURCES(Z_REF_P(val))) {
  		int result;
  
  		val = Z_REFVAL_P(val);
  		result = i_zend_verify_type_assignable_zval(prop_info, val, strict);
  		if (result > 0) {
  			return 1;
  		}
  
  		if (result < 0) {
  			/* This is definitely an error, but we still need to determined why: Either because
  			 * the value is simply illegal for the type, or because or a conflicting coercion. */
  			zval tmp;
  			ZVAL_COPY(&tmp, val);
  			if (zend_verify_weak_scalar_type_hint(ZEND_TYPE_FULL_MASK(prop_info->type), &tmp)) {
  				zend_property_info *ref_prop = ZEND_REF_FIRST_SOURCE(Z_REF_P(orig_val));
  				zend_throw_ref_type_error_type(ref_prop, prop_info, val);
  				zval_ptr_dtor(&tmp);
  				return 0;
  			}
  			zval_ptr_dtor(&tmp);
  		}
  	} else {
  		ZVAL_DEREF(val);
  		if (i_zend_check_property_type(prop_info, val, strict)) {
  			return 1;
  		}
  	}
  
  	zend_verify_property_type_error(prop_info, val);
  	return 0;
  }
  
  ZEND_API void ZEND_FASTCALL zend_ref_add_type_source(zend_property_info_source_list *source_list, zend_property_info *prop)
  {
  	zend_property_info_list *list;
  	if (source_list->ptr == NULL) {
  		source_list->ptr = prop;
  		return;
  	}
  
  	list = ZEND_PROPERTY_INFO_SOURCE_TO_LIST(source_list->list);
  	if (!ZEND_PROPERTY_INFO_SOURCE_IS_LIST(source_list->list)) {
  		list = emalloc(sizeof(zend_property_info_list) + (4 - 1) * sizeof(zend_property_info *));
  		list->ptr[0] = source_list->ptr;
  		list->num_allocated = 4;
  		list->num = 1;
  	} else if (list->num_allocated == list->num) {
  		list->num_allocated = list->num * 2;
  		list = erealloc(list, sizeof(zend_property_info_list) + (list->num_allocated - 1) * sizeof(zend_property_info *));
  	}
  
  	list->ptr[list->num++] = prop;
  	source_list->list = ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(list);
  }
  
  ZEND_API void ZEND_FASTCALL zend_ref_del_type_source(zend_property_info_source_list *source_list, zend_property_info *prop)
  {
  	zend_property_info_list *list = ZEND_PROPERTY_INFO_SOURCE_TO_LIST(source_list->list);
  	zend_property_info **ptr, **end;
  
  	if (!ZEND_PROPERTY_INFO_SOURCE_IS_LIST(source_list->list)) {
  		ZEND_ASSERT(source_list->ptr == prop);
  		source_list->ptr = NULL;
  		return;
  	}
  
  	if (list->num == 1) {
  		ZEND_ASSERT(*list->ptr == prop);
  		efree(list);
  		source_list->ptr = NULL;
  		return;
  	}
  
  	/* Checking against end here to get a more graceful failure mode if we missed adding a type
  	 * source at some point. */
  	ptr = list->ptr;
  	end = ptr + list->num;
  	while (ptr < end && *ptr != prop) {
  		ptr++;
  	}
  	ZEND_ASSERT(*ptr == prop);
  
  	/* Copy the last list element into the deleted slot. */
  	*ptr = list->ptr[--list->num];
  
  	if (list->num >= 4 && list->num * 4 == list->num_allocated) {
  		list->num_allocated = list->num * 2;
  		source_list->list = ZEND_PROPERTY_INFO_SOURCE_FROM_LIST(erealloc(list, sizeof(zend_property_info_list) + (list->num_allocated - 1) * sizeof(zend_property_info *)));
  	}
  }
  
  static zend_never_inline void zend_fetch_this_var(int type OPLINE_DC EXECUTE_DATA_DC)
  {
  	zval *result = EX_VAR(opline->result.var);
  
  	switch (type) {
  		case BP_VAR_R:
  			if (EXPECTED(Z_TYPE(EX(This)) == IS_OBJECT)) {
  				ZVAL_OBJ(result, Z_OBJ(EX(This)));
  				Z_ADDREF_P(result);
  			} else {
  				ZVAL_NULL(result);
  				zend_error(E_WARNING, "Undefined variable $this");
  			}
  			break;
  		case BP_VAR_IS:
  			if (EXPECTED(Z_TYPE(EX(This)) == IS_OBJECT)) {
  				ZVAL_OBJ(result, Z_OBJ(EX(This)));
  				Z_ADDREF_P(result);
  			} else {
  				ZVAL_NULL(result);
  			}
  			break;
  		case BP_VAR_RW:
  		case BP_VAR_W:
  			ZVAL_UNDEF(result);
  			zend_throw_error(NULL, "Cannot re-assign $this");
  			break;
  		case BP_VAR_UNSET:
  			ZVAL_UNDEF(result);
  			zend_throw_error(NULL, "Cannot unset $this");
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE()
  	}
  }
  
  static zend_never_inline ZEND_COLD void ZEND_FASTCALL zend_wrong_clone_call(zend_function *clone, zend_class_entry *scope)
  {
  	zend_throw_error(NULL, "Call to %s %s::__clone() from %s%s",
  		zend_visibility_string(clone->common.fn_flags), ZSTR_VAL(clone->common.scope->name),
  		scope ? "scope " : "global scope",
  		scope ? ZSTR_VAL(scope->name) : ""
  	);
  }
  
  #if ZEND_INTENSIVE_DEBUGGING
  
  #define CHECK_SYMBOL_TABLES()													\
  	zend_hash_apply(&EG(symbol_table), zend_check_symbol);			\
  	if (&EG(symbol_table)!=EX(symbol_table)) {							\
  		zend_hash_apply(EX(symbol_table), zend_check_symbol);	\
  	}
  
  static int zend_check_symbol(zval *pz)
  {
  	if (Z_TYPE_P(pz) == IS_INDIRECT) {
  		pz = Z_INDIRECT_P(pz);
  	}
  	if (Z_TYPE_P(pz) > 10) {
  		fprintf(stderr, "Warning!  %x has invalid type!\n", *pz);
  /* See http://support.microsoft.com/kb/190351 */
  #ifdef ZEND_WIN32
  		fflush(stderr);
  #endif
  	} else if (Z_TYPE_P(pz) == IS_ARRAY) {
  		zend_hash_apply(Z_ARRVAL_P(pz), zend_check_symbol);
  	} else if (Z_TYPE_P(pz) == IS_OBJECT) {
  		/* OBJ-TBI - doesn't support new object model! */
  		zend_hash_apply(Z_OBJPROP_P(pz), zend_check_symbol);
  	}
  
  	return 0;
  }
  
  
  #else
  #define CHECK_SYMBOL_TABLES()
  #endif
  
  ZEND_API void execute_internal(zend_execute_data *execute_data, zval *return_value)
  {
  	execute_data->func->internal_function.handler(execute_data, return_value);
  }
  
  ZEND_API void zend_clean_and_cache_symbol_table(zend_array *symbol_table) /* {{{ */
  {
  	if (EG(symtable_cache_ptr) >= EG(symtable_cache_limit)) {
  		zend_array_destroy(symbol_table);
  	} else {
  		/* clean before putting into the cache, since clean
  		   could call dtors, which could use cached hash */
  		zend_symtable_clean(symbol_table);
  		*(EG(symtable_cache_ptr)++) = symbol_table;
  	}
  }
  /* }}} */
  
  static zend_always_inline void i_free_compiled_variables(zend_execute_data *execute_data) /* {{{ */
  {
  	zval *cv = EX_VAR_NUM(0);
  	int count = EX(func)->op_array.last_var;
  	while (EXPECTED(count != 0)) {
  		i_zval_ptr_dtor(cv);
  		cv++;
  		count--;
  	}
  }
  /* }}} */
  
  ZEND_API void zend_free_compiled_variables(zend_execute_data *execute_data) /* {{{ */
  {
  	i_free_compiled_variables(execute_data);
  }
  /* }}} */
  
  #define ZEND_VM_INTERRUPT_CHECK() do { \
  		if (UNEXPECTED(EG(vm_interrupt))) { \
  			ZEND_VM_INTERRUPT(); \
  		} \
  	} while (0)
  
  #define ZEND_VM_LOOP_INTERRUPT_CHECK() do { \
  		if (UNEXPECTED(EG(vm_interrupt))) { \
  			ZEND_VM_LOOP_INTERRUPT(); \
  		} \
  	} while (0)
  
  /*
   * Stack Frame Layout (the whole stack frame is allocated at once)
   * ==================
   *
   *                             +========================================+
   * EG(current_execute_data) -> | zend_execute_data                      |
   *                             +----------------------------------------+
   *     EX_VAR_NUM(0) --------> | VAR[0] = ARG[1]                        |
   *                             | ...                                    |
   *                             | VAR[op_array->num_args-1] = ARG[N]     |
   *                             | ...                                    |
   *                             | VAR[op_array->last_var-1]              |
   *                             | VAR[op_array->last_var] = TMP[0]       |
   *                             | ...                                    |
   *                             | VAR[op_array->last_var+op_array->T-1]  |
   *                             | ARG[N+1] (extra_args)                  |
   *                             | ...                                    |
   *                             +----------------------------------------+
   */
  
  /* zend_copy_extra_args is used when the actually passed number of arguments
   * (EX_NUM_ARGS) is greater than what the function defined (op_array->num_args).
   *
   * The extra arguments will be copied into the call frame after all the compiled variables.
   *
   * If there are extra arguments copied, a flag "ZEND_CALL_FREE_EXTRA_ARGS" will be set
   * on the zend_execute_data, and when the executor leaves the function, the
   * args will be freed in zend_leave_helper.
   */
  static zend_never_inline void zend_copy_extra_args(EXECUTE_DATA_D)
  {
  	zend_op_array *op_array = &EX(func)->op_array;
  	uint32_t first_extra_arg = op_array->num_args;
  	uint32_t num_args = EX_NUM_ARGS();
  	zval *src;
  	size_t delta;
  	uint32_t count;
  	uint32_t type_flags = 0;
  
  	if (EXPECTED((op_array->fn_flags & ZEND_ACC_HAS_TYPE_HINTS) == 0)) {
  		/* Skip useless ZEND_RECV and ZEND_RECV_INIT opcodes */
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  		opline += first_extra_arg;
  #else
  		EX(opline) += first_extra_arg;
  #endif
  
  	}
  
  	/* move extra args into separate array after all CV and TMP vars */
  	src = EX_VAR_NUM(num_args - 1);
  	delta = op_array->last_var + op_array->T - first_extra_arg;
  	count = num_args - first_extra_arg;
  	if (EXPECTED(delta != 0)) {
  		delta *= sizeof(zval);
  		do {
  			type_flags |= Z_TYPE_INFO_P(src);
  			ZVAL_COPY_VALUE((zval*)(((char*)src) + delta), src);
  			ZVAL_UNDEF(src);
  			src--;
  		} while (--count);
  		if (Z_TYPE_INFO_REFCOUNTED(type_flags)) {
  			ZEND_ADD_CALL_FLAG(execute_data, ZEND_CALL_FREE_EXTRA_ARGS);
  		}
  	} else {
  		do {
  			if (Z_REFCOUNTED_P(src)) {
  				ZEND_ADD_CALL_FLAG(execute_data, ZEND_CALL_FREE_EXTRA_ARGS);
  				break;
  			}
  			src--;
  		} while (--count);
  	}
  }
  
  static zend_always_inline void zend_init_cvs(uint32_t first, uint32_t last EXECUTE_DATA_DC)
  {
  	if (EXPECTED(first < last)) {
  		uint32_t count = last - first;
  		zval *var = EX_VAR_NUM(first);
  
  		do {
  			ZVAL_UNDEF(var);
  			var++;
  		} while (--count);
  	}
  }
  
  static zend_always_inline void i_init_func_execute_data(zend_op_array *op_array, zval *return_value, zend_bool may_be_trampoline EXECUTE_DATA_DC) /* {{{ */
  {
  	uint32_t first_extra_arg, num_args;
  	ZEND_ASSERT(EX(func) == (zend_function*)op_array);
  
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  	opline = op_array->opcodes;
  #else
  	EX(opline) = op_array->opcodes;
  #endif
  	EX(call) = NULL;
  	EX(return_value) = return_value;
  
  	/* Handle arguments */
  	first_extra_arg = op_array->num_args;
  	num_args = EX_NUM_ARGS();
  	if (UNEXPECTED(num_args > first_extra_arg)) {
  		if (!may_be_trampoline || EXPECTED(!(op_array->fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE))) {
  			zend_copy_extra_args(EXECUTE_DATA_C);
  		}
  	} else if (EXPECTED((op_array->fn_flags & ZEND_ACC_HAS_TYPE_HINTS) == 0)) {
  		/* Skip useless ZEND_RECV and ZEND_RECV_INIT opcodes */
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  		opline += num_args;
  #else
  		EX(opline) += num_args;
  #endif
  	}
  
  	/* Initialize CV variables (skip arguments) */
  	zend_init_cvs(num_args, op_array->last_var EXECUTE_DATA_CC);
  
  	EX(run_time_cache) = RUN_TIME_CACHE(op_array);
  
  	EG(current_execute_data) = execute_data;
  }
  /* }}} */
  
  static zend_always_inline void init_func_run_time_cache_i(zend_op_array *op_array) /* {{{ */
  {
  	void **run_time_cache;
  
  	ZEND_ASSERT(RUN_TIME_CACHE(op_array) == NULL);
  	run_time_cache = zend_arena_alloc(&CG(arena), op_array->cache_size);
  	memset(run_time_cache, 0, op_array->cache_size);
  	ZEND_MAP_PTR_SET(op_array->run_time_cache, run_time_cache);
  }
  /* }}} */
  
  static zend_never_inline void ZEND_FASTCALL init_func_run_time_cache(zend_op_array *op_array) /* {{{ */
  {
  	init_func_run_time_cache_i(op_array);
  }
  /* }}} */
  
  ZEND_API zend_function * ZEND_FASTCALL zend_fetch_function(zend_string *name) /* {{{ */
  {
  	zval *zv = zend_hash_find(EG(function_table), name);
  
  	if (EXPECTED(zv != NULL)) {
  		zend_function *fbc = Z_FUNC_P(zv);
  
  		if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  			init_func_run_time_cache_i(&fbc->op_array);
  		}
  		return fbc;
  	}
  	return NULL;
  } /* }}} */
  
  ZEND_API zend_function * ZEND_FASTCALL zend_fetch_function_str(const char *name, size_t len) /* {{{ */
  {
  	zval *zv = zend_hash_str_find(EG(function_table), name, len);
  
  	if (EXPECTED(zv != NULL)) {
  		zend_function *fbc = Z_FUNC_P(zv);
  
  		if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  			init_func_run_time_cache_i(&fbc->op_array);
  		}
  		return fbc;
  	}
  	return NULL;
  } /* }}} */
  
  ZEND_API void ZEND_FASTCALL zend_init_func_run_time_cache(zend_op_array *op_array) /* {{{ */
  {
  	if (!RUN_TIME_CACHE(op_array)) {
  		init_func_run_time_cache_i(op_array);
  	}
  } /* }}} */
  
  static zend_always_inline void i_init_code_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
  {
  	ZEND_ASSERT(EX(func) == (zend_function*)op_array);
  
  	EX(opline) = op_array->opcodes;
  	EX(call) = NULL;
  	EX(return_value) = return_value;
  
  	zend_attach_symbol_table(execute_data);
  
  	if (!ZEND_MAP_PTR(op_array->run_time_cache)) {
  		void *ptr;
  
  		ZEND_ASSERT(op_array->fn_flags & ZEND_ACC_HEAP_RT_CACHE);
  		ptr = emalloc(op_array->cache_size + sizeof(void*));
  		ZEND_MAP_PTR_INIT(op_array->run_time_cache, ptr);
  		ptr = (char*)ptr + sizeof(void*);
  		ZEND_MAP_PTR_SET(op_array->run_time_cache, ptr);
  		memset(ptr, 0, op_array->cache_size);
  	}
  	EX(run_time_cache) = RUN_TIME_CACHE(op_array);
  
  	EG(current_execute_data) = execute_data;
  }
  /* }}} */
  
  ZEND_API void zend_init_func_execute_data(zend_execute_data *ex, zend_op_array *op_array, zval *return_value) /* {{{ */
  {
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  	zend_execute_data *orig_execute_data = execute_data;
  #endif
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  	const zend_op *orig_opline = opline;
  #endif
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  	execute_data = ex;
  #else
  	zend_execute_data *execute_data = ex;
  #endif
  
  	EX(prev_execute_data) = EG(current_execute_data);
  	if (!RUN_TIME_CACHE(op_array)) {
  		init_func_run_time_cache(op_array);
  	}
  	i_init_func_execute_data(op_array, return_value, 1 EXECUTE_DATA_CC);
  
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
      EX(opline) = opline;
  	opline = orig_opline;
  #endif
  #if defined(ZEND_VM_FP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  	execute_data = orig_execute_data;
  #endif
  }
  /* }}} */
  
  ZEND_API void zend_init_code_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
  {
  	EX(prev_execute_data) = EG(current_execute_data);
  	i_init_code_execute_data(execute_data, op_array, return_value);
  }
  /* }}} */
  
  ZEND_API void zend_init_execute_data(zend_execute_data *execute_data, zend_op_array *op_array, zval *return_value) /* {{{ */
  {
  	if (EX_CALL_INFO() & ZEND_CALL_HAS_SYMBOL_TABLE) {
  		zend_init_code_execute_data(execute_data, op_array, return_value);
  	} else {
  		zend_init_func_execute_data(execute_data, op_array, return_value);
  	}
  }
  /* }}} */
  
  static zend_execute_data *zend_vm_stack_copy_call_frame(zend_execute_data *call, uint32_t passed_args, uint32_t additional_args) /* {{{ */
  {
  	zend_execute_data *new_call;
  	int used_stack = (EG(vm_stack_top) - (zval*)call) + additional_args;
  
  	/* copy call frame into new stack segment */
  	new_call = zend_vm_stack_extend(used_stack * sizeof(zval));
  	*new_call = *call;
  	ZEND_ADD_CALL_FLAG(new_call, ZEND_CALL_ALLOCATED);
  
  	if (passed_args) {
  		zval *src = ZEND_CALL_ARG(call, 1);
  		zval *dst = ZEND_CALL_ARG(new_call, 1);
  		do {
  			ZVAL_COPY_VALUE(dst, src);
  			passed_args--;
  			src++;
  			dst++;
  		} while (passed_args);
  	}
  
  	/* delete old call_frame from previous stack segment */
  	EG(vm_stack)->prev->top = (zval*)call;
  
  	/* delete previous stack segment if it became empty */
  	if (UNEXPECTED(EG(vm_stack)->prev->top == ZEND_VM_STACK_ELEMENTS(EG(vm_stack)->prev))) {
  		zend_vm_stack r = EG(vm_stack)->prev;
  
  		EG(vm_stack)->prev = r->prev;
  		efree(r);
  	}
  
  	return new_call;
  }
  /* }}} */
  
  static zend_always_inline void zend_vm_stack_extend_call_frame(zend_execute_data **call, uint32_t passed_args, uint32_t additional_args) /* {{{ */
  {
  	if (EXPECTED((uint32_t)(EG(vm_stack_end) - EG(vm_stack_top)) > additional_args)) {
  		EG(vm_stack_top) += additional_args;
  	} else {
  		*call = zend_vm_stack_copy_call_frame(*call, passed_args, additional_args);
  	}
  }
  /* }}} */
  
  static zend_always_inline zend_generator *zend_get_running_generator(EXECUTE_DATA_D) /* {{{ */
  {
  	/* The generator object is stored in EX(return_value) */
  	zend_generator *generator = (zend_generator *) EX(return_value);
  	/* However control may currently be delegated to another generator.
  	 * That's the one we're interested in. */
  	return generator;
  }
  /* }}} */
  
  static void cleanup_unfinished_calls(zend_execute_data *execute_data, uint32_t op_num) /* {{{ */
  {
  	if (UNEXPECTED(EX(call))) {
  		zend_execute_data *call = EX(call);
  		zend_op *opline = EX(func)->op_array.opcodes + op_num;
  		int level;
  		int do_exit;
  
  		if (UNEXPECTED(opline->opcode == ZEND_INIT_FCALL ||
  			opline->opcode == ZEND_INIT_FCALL_BY_NAME ||
  			opline->opcode == ZEND_INIT_NS_FCALL_BY_NAME ||
  			opline->opcode == ZEND_INIT_DYNAMIC_CALL ||
  			opline->opcode == ZEND_INIT_USER_CALL ||
  			opline->opcode == ZEND_INIT_METHOD_CALL ||
  			opline->opcode == ZEND_INIT_STATIC_METHOD_CALL ||
  			opline->opcode == ZEND_NEW)) {
  			ZEND_ASSERT(op_num);
  			opline--;
  		}
  
  		do {
  			/* If the exception was thrown during a function call there might be
  			 * arguments pushed to the stack that have to be dtor'ed. */
  
  			/* find the number of actually passed arguments */
  			level = 0;
  			do_exit = 0;
  			do {
  				switch (opline->opcode) {
  					case ZEND_DO_FCALL:
  					case ZEND_DO_ICALL:
  					case ZEND_DO_UCALL:
  					case ZEND_DO_FCALL_BY_NAME:
  						level++;
  						break;
  					case ZEND_INIT_FCALL:
  					case ZEND_INIT_FCALL_BY_NAME:
  					case ZEND_INIT_NS_FCALL_BY_NAME:
  					case ZEND_INIT_DYNAMIC_CALL:
  					case ZEND_INIT_USER_CALL:
  					case ZEND_INIT_METHOD_CALL:
  					case ZEND_INIT_STATIC_METHOD_CALL:
  					case ZEND_NEW:
  						if (level == 0) {
  							ZEND_CALL_NUM_ARGS(call) = 0;
  							do_exit = 1;
  						}
  						level--;
  						break;
  					case ZEND_SEND_VAL:
  					case ZEND_SEND_VAL_EX:
  					case ZEND_SEND_VAR:
  					case ZEND_SEND_VAR_EX:
  					case ZEND_SEND_FUNC_ARG:
  					case ZEND_SEND_REF:
  					case ZEND_SEND_VAR_NO_REF:
  					case ZEND_SEND_VAR_NO_REF_EX:
  					case ZEND_SEND_USER:
  						if (level == 0) {
  							ZEND_CALL_NUM_ARGS(call) = opline->op2.num;
  							do_exit = 1;
  						}
  						break;
  					case ZEND_SEND_ARRAY:
  					case ZEND_SEND_UNPACK:
  						if (level == 0) {
  							do_exit = 1;
  						}
  						break;
  				}
  				if (!do_exit) {
  					opline--;
  				}
  			} while (!do_exit);
  			if (call->prev_execute_data) {
  				/* skip current call region */
  				level = 0;
  				do_exit = 0;
  				do {
  					switch (opline->opcode) {
  						case ZEND_DO_FCALL:
  						case ZEND_DO_ICALL:
  						case ZEND_DO_UCALL:
  						case ZEND_DO_FCALL_BY_NAME:
  							level++;
  							break;
  						case ZEND_INIT_FCALL:
  						case ZEND_INIT_FCALL_BY_NAME:
  						case ZEND_INIT_NS_FCALL_BY_NAME:
  						case ZEND_INIT_DYNAMIC_CALL:
  						case ZEND_INIT_USER_CALL:
  						case ZEND_INIT_METHOD_CALL:
  						case ZEND_INIT_STATIC_METHOD_CALL:
  						case ZEND_NEW:
  							if (level == 0) {
  								do_exit = 1;
  							}
  							level--;
  							break;
  					}
  					opline--;
  				} while (!do_exit);
  			}
  
  			zend_vm_stack_free_args(EX(call));
  
  			if (ZEND_CALL_INFO(call) & ZEND_CALL_RELEASE_THIS) {
  				OBJ_RELEASE(Z_OBJ(call->This));
  			}
  			if (call->func->common.fn_flags & ZEND_ACC_CLOSURE) {
  				zend_object_release(ZEND_CLOSURE_OBJECT(call->func));
  			} else if (call->func->common.fn_flags & ZEND_ACC_CALL_VIA_TRAMPOLINE) {
  				zend_string_release_ex(call->func->common.function_name, 0);
  				zend_free_trampoline(call->func);
  			}
  
  			EX(call) = call->prev_execute_data;
  			zend_vm_stack_free_call_frame(call);
  			call = EX(call);
  		} while (call);
  	}
  }
  /* }}} */
  
  static const zend_live_range *find_live_range(const zend_op_array *op_array, uint32_t op_num, uint32_t var_num) /* {{{ */
  {
  	int i;
  	for (i = 0; i < op_array->last_live_range; i++) {
  		const zend_live_range *range = &op_array->live_range[i];
  		if (op_num >= range->start && op_num < range->end
  				&& var_num == (range->var & ~ZEND_LIVE_MASK)) {
  			return range;
  		}
  	}
  	return NULL;
  }
  /* }}} */
  
  static void cleanup_live_vars(zend_execute_data *execute_data, uint32_t op_num, uint32_t catch_op_num) /* {{{ */
  {
  	int i;
  
  	for (i = 0; i < EX(func)->op_array.last_live_range; i++) {
  		const zend_live_range *range = &EX(func)->op_array.live_range[i];
  		if (range->start > op_num) {
  			/* further blocks will not be relevant... */
  			break;
  		} else if (op_num < range->end) {
  			if (!catch_op_num || catch_op_num >= range->end) {
  				uint32_t kind = range->var & ZEND_LIVE_MASK;
  				uint32_t var_num = range->var & ~ZEND_LIVE_MASK;
  				zval *var = EX_VAR(var_num);
  
  				if (kind == ZEND_LIVE_TMPVAR) {
  					zval_ptr_dtor_nogc(var);
  				} else if (kind == ZEND_LIVE_NEW) {
  					zend_object *obj;
  					ZEND_ASSERT(Z_TYPE_P(var) == IS_OBJECT);
  					obj = Z_OBJ_P(var);
  					zend_object_store_ctor_failed(obj);
  					OBJ_RELEASE(obj);
  				} else if (kind == ZEND_LIVE_LOOP) {
  					if (Z_TYPE_P(var) != IS_ARRAY && Z_FE_ITER_P(var) != (uint32_t)-1) {
  						zend_hash_iterator_del(Z_FE_ITER_P(var));
  					}
  					zval_ptr_dtor_nogc(var);
  				} else if (kind == ZEND_LIVE_ROPE) {
  					zend_string **rope = (zend_string **)var;
  					zend_op *last = EX(func)->op_array.opcodes + op_num;
  					while ((last->opcode != ZEND_ROPE_ADD && last->opcode != ZEND_ROPE_INIT)
  							|| last->result.var != var_num) {
  						ZEND_ASSERT(last >= EX(func)->op_array.opcodes);
  						last--;
  					}
  					if (last->opcode == ZEND_ROPE_INIT) {
  						zend_string_release_ex(*rope, 0);
  					} else {
  						int j = last->extended_value;
  						do {
  							zend_string_release_ex(rope[j], 0);
  						} while (j--);
  					}
  				} else if (kind == ZEND_LIVE_SILENCE) {
  					/* restore previous error_reporting value */
  					if (E_HAS_ONLY_FATAL_ERRORS(EG(error_reporting))
  							&& !E_HAS_ONLY_FATAL_ERRORS(Z_LVAL_P(var))) {
  						EG(error_reporting) = Z_LVAL_P(var);
  					}
  				}
  			}
  		}
  	}
  }
  /* }}} */
  
  ZEND_API void zend_cleanup_unfinished_execution(zend_execute_data *execute_data, uint32_t op_num, uint32_t catch_op_num) {
  	cleanup_unfinished_calls(execute_data, op_num);
  	cleanup_live_vars(execute_data, op_num, catch_op_num);
  }
  
  #if ZEND_VM_SPEC
  static void zend_swap_operands(zend_op *op) /* {{{ */
  {
  	znode_op     tmp;
  	zend_uchar   tmp_type;
  
  	tmp          = op->op1;
  	tmp_type     = op->op1_type;
  	op->op1      = op->op2;
  	op->op1_type = op->op2_type;
  	op->op2      = tmp;
  	op->op2_type = tmp_type;
  }
  /* }}} */
  #endif
  
  static zend_never_inline zend_execute_data *zend_init_dynamic_call_string(zend_string *function, uint32_t num_args) /* {{{ */
  {
  	zend_function *fbc;
  	zval *func;
  	zend_class_entry *called_scope;
  	zend_string *lcname;
  	const char *colon;
  
  	if ((colon = zend_memrchr(ZSTR_VAL(function), ':', ZSTR_LEN(function))) != NULL &&
  		colon > ZSTR_VAL(function) &&
  		*(colon-1) == ':'
  	) {
  		zend_string *mname;
  		size_t cname_length = colon - ZSTR_VAL(function) - 1;
  		size_t mname_length = ZSTR_LEN(function) - cname_length - (sizeof("::") - 1);
  
  		lcname = zend_string_init(ZSTR_VAL(function), cname_length, 0);
  
  		called_scope = zend_fetch_class_by_name(lcname, NULL, ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
  		if (UNEXPECTED(called_scope == NULL)) {
  			zend_string_release_ex(lcname, 0);
  			return NULL;
  		}
  
  		mname = zend_string_init(ZSTR_VAL(function) + (cname_length + sizeof("::") - 1), mname_length, 0);
  
  		if (called_scope->get_static_method) {
  			fbc = called_scope->get_static_method(called_scope, mname);
  		} else {
  			fbc = zend_std_get_static_method(called_scope, mname, NULL);
  		}
  		if (UNEXPECTED(fbc == NULL)) {
  			if (EXPECTED(!EG(exception))) {
  				zend_undefined_method(called_scope, mname);
  			}
  			zend_string_release_ex(lcname, 0);
  			zend_string_release_ex(mname, 0);
  			return NULL;
  		}
  
  		zend_string_release_ex(lcname, 0);
  		zend_string_release_ex(mname, 0);
  
  		if (UNEXPECTED(!(fbc->common.fn_flags & ZEND_ACC_STATIC))) {
  			zend_non_static_method_call(fbc);
  			return NULL;
  		}
  		if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  			init_func_run_time_cache(&fbc->op_array);
  		}
  	} else {
  		if (ZSTR_VAL(function)[0] == '\\') {
  			lcname = zend_string_alloc(ZSTR_LEN(function) - 1, 0);
  			zend_str_tolower_copy(ZSTR_VAL(lcname), ZSTR_VAL(function) + 1, ZSTR_LEN(function) - 1);
  		} else {
  			lcname = zend_string_tolower(function);
  		}
  		if (UNEXPECTED((func = zend_hash_find(EG(function_table), lcname)) == NULL)) {
  			zend_throw_error(NULL, "Call to undefined function %s()", ZSTR_VAL(function));
  			zend_string_release_ex(lcname, 0);
  			return NULL;
  		}
  		zend_string_release_ex(lcname, 0);
  
  		fbc = Z_FUNC_P(func);
  		if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  			init_func_run_time_cache(&fbc->op_array);
  		}
  		called_scope = NULL;
  	}
  
  	return zend_vm_stack_push_call_frame(ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC,
  		fbc, num_args, called_scope);
  }
  /* }}} */
  
  static zend_never_inline zend_execute_data *zend_init_dynamic_call_object(zend_object *function, uint32_t num_args) /* {{{ */
  {
  	zend_function *fbc;
  	void *object_or_called_scope;
  	zend_class_entry *called_scope;
  	zend_object *object;
  	uint32_t call_info = ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC;
  
  	if (EXPECTED(function->handlers->get_closure) &&
  	    EXPECTED(function->handlers->get_closure(function, &called_scope, &fbc, &object, 0) == SUCCESS)) {
  
  	    object_or_called_scope = called_scope;
  		if (fbc->common.fn_flags & ZEND_ACC_CLOSURE) {
  			/* Delay closure destruction until its invocation */
  			GC_ADDREF(ZEND_CLOSURE_OBJECT(fbc));
  			call_info |= ZEND_CALL_CLOSURE;
  			if (fbc->common.fn_flags & ZEND_ACC_FAKE_CLOSURE) {
  				call_info |= ZEND_CALL_FAKE_CLOSURE;
  			}
  			if (object) {
  				call_info |= ZEND_CALL_HAS_THIS;
  				object_or_called_scope = object;
  			}
  		} else if (object) {
  			call_info |= ZEND_CALL_RELEASE_THIS | ZEND_CALL_HAS_THIS;
  			GC_ADDREF(object); /* For $this pointer */
  			object_or_called_scope = object;
  		}
  	} else {
  		zend_throw_error(NULL, "Object of type %s is not callable", ZSTR_VAL(function->ce->name));
  		return NULL;
  	}
  
  	if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  		init_func_run_time_cache(&fbc->op_array);
  	}
  
  	return zend_vm_stack_push_call_frame(call_info,
  		fbc, num_args, object_or_called_scope);
  }
  /* }}} */
  
  static zend_never_inline zend_execute_data *zend_init_dynamic_call_array(zend_array *function, uint32_t num_args) /* {{{ */
  {
  	zend_function *fbc;
  	void *object_or_called_scope;
  	uint32_t call_info = ZEND_CALL_NESTED_FUNCTION | ZEND_CALL_DYNAMIC;
  
  	if (zend_hash_num_elements(function) == 2) {
  		zval *obj;
  		zval *method;
  		obj = zend_hash_index_find(function, 0);
  		method = zend_hash_index_find(function, 1);
  
  		if (UNEXPECTED(!obj) || UNEXPECTED(!method)) {
  			zend_throw_error(NULL, "Array callback has to contain indices 0 and 1");
  			return NULL;
  		}
  
  		ZVAL_DEREF(obj);
  		if (UNEXPECTED(Z_TYPE_P(obj) != IS_STRING) && UNEXPECTED(Z_TYPE_P(obj) != IS_OBJECT)) {
  			zend_throw_error(NULL, "First array member is not a valid class name or object");
  			return NULL;
  		}
  
  		ZVAL_DEREF(method);
  		if (UNEXPECTED(Z_TYPE_P(method) != IS_STRING)) {
  			zend_throw_error(NULL, "Second array member is not a valid method");
  			return NULL;
  		}
  
  		if (Z_TYPE_P(obj) == IS_STRING) {
  			zend_class_entry *called_scope = zend_fetch_class_by_name(Z_STR_P(obj), NULL, ZEND_FETCH_CLASS_DEFAULT | ZEND_FETCH_CLASS_EXCEPTION);
  
  			if (UNEXPECTED(called_scope == NULL)) {
  				return NULL;
  			}
  
  			if (called_scope->get_static_method) {
  				fbc = called_scope->get_static_method(called_scope, Z_STR_P(method));
  			} else {
  				fbc = zend_std_get_static_method(called_scope, Z_STR_P(method), NULL);
  			}
  			if (UNEXPECTED(fbc == NULL)) {
  				if (EXPECTED(!EG(exception))) {
  					zend_undefined_method(called_scope, Z_STR_P(method));
  				}
  				return NULL;
  			}
  			if (!(fbc->common.fn_flags & ZEND_ACC_STATIC)) {
  				zend_non_static_method_call(fbc);
  				return NULL;
  			}
  			object_or_called_scope = called_scope;
  		} else {
  			zend_object *object = Z_OBJ_P(obj);
  
  			fbc = Z_OBJ_HT_P(obj)->get_method(&object, Z_STR_P(method), NULL);
  			if (UNEXPECTED(fbc == NULL)) {
  				if (EXPECTED(!EG(exception))) {
  					zend_undefined_method(object->ce, Z_STR_P(method));
  				}
  				return NULL;
  			}
  
  			if ((fbc->common.fn_flags & ZEND_ACC_STATIC) != 0) {
  				object_or_called_scope = object->ce;
  			} else {
  				call_info |= ZEND_CALL_RELEASE_THIS | ZEND_CALL_HAS_THIS;
  				GC_ADDREF(object); /* For $this pointer */
  				object_or_called_scope = object;
  			}
  		}
  	} else {
  		zend_throw_error(NULL, "Array callback must have exactly two elements");
  		return NULL;
  	}
  
  	if (EXPECTED(fbc->type == ZEND_USER_FUNCTION) && UNEXPECTED(!RUN_TIME_CACHE(&fbc->op_array))) {
  		init_func_run_time_cache(&fbc->op_array);
  	}
  
  	return zend_vm_stack_push_call_frame(call_info,
  		fbc, num_args, object_or_called_scope);
  }
  /* }}} */
  
  #define ZEND_FAKE_OP_ARRAY ((zend_op_array*)(zend_intptr_t)-1)
  
  static zend_never_inline zend_op_array* ZEND_FASTCALL zend_include_or_eval(zval *inc_filename, int type) /* {{{ */
  {
  	zend_op_array *new_op_array = NULL;
  	zval tmp_inc_filename;
  
  	ZVAL_UNDEF(&tmp_inc_filename);
  	if (Z_TYPE_P(inc_filename) != IS_STRING) {
  		zend_string *tmp = zval_try_get_string_func(inc_filename);
  
  		if (UNEXPECTED(!tmp)) {
  			return NULL;
  		}
  		ZVAL_STR(&tmp_inc_filename, tmp);
  		inc_filename = &tmp_inc_filename;
  	}
  
  	switch (type) {
  		case ZEND_INCLUDE_ONCE:
  		case ZEND_REQUIRE_ONCE: {
  				zend_file_handle file_handle;
  				zend_string *resolved_path;
  
  				resolved_path = zend_resolve_path(Z_STRVAL_P(inc_filename), Z_STRLEN_P(inc_filename));
  				if (EXPECTED(resolved_path)) {
  					if (zend_hash_exists(&EG(included_files), resolved_path)) {
  						goto already_compiled;
  					}
  				} else if (UNEXPECTED(EG(exception))) {
  					break;
  				} else if (UNEXPECTED(strlen(Z_STRVAL_P(inc_filename)) != Z_STRLEN_P(inc_filename))) {
  					zend_message_dispatcher(
  						(type == ZEND_INCLUDE_ONCE) ?
  							ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
  							Z_STRVAL_P(inc_filename));
  					break;
  				} else {
  					resolved_path = zend_string_copy(Z_STR_P(inc_filename));
  				}
  
  				if (SUCCESS == zend_stream_open(ZSTR_VAL(resolved_path), &file_handle)) {
  
  					if (!file_handle.opened_path) {
  						file_handle.opened_path = zend_string_copy(resolved_path);
  					}
  
  					if (zend_hash_add_empty_element(&EG(included_files), file_handle.opened_path)) {
  						zend_op_array *op_array = zend_compile_file(&file_handle, (type==ZEND_INCLUDE_ONCE?ZEND_INCLUDE:ZEND_REQUIRE));
  						zend_destroy_file_handle(&file_handle);
  						zend_string_release_ex(resolved_path, 0);
  						if (Z_TYPE(tmp_inc_filename) != IS_UNDEF) {
  							zval_ptr_dtor_str(&tmp_inc_filename);
  						}
  						return op_array;
  					} else {
  						zend_file_handle_dtor(&file_handle);
  already_compiled:
  						new_op_array = ZEND_FAKE_OP_ARRAY;
  					}
  				} else {
  					zend_message_dispatcher(
  						(type == ZEND_INCLUDE_ONCE) ?
  							ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
  							Z_STRVAL_P(inc_filename));
  				}
  				zend_string_release_ex(resolved_path, 0);
  			}
  			break;
  		case ZEND_INCLUDE:
  		case ZEND_REQUIRE:
  			if (UNEXPECTED(strlen(Z_STRVAL_P(inc_filename)) != Z_STRLEN_P(inc_filename))) {
  				zend_message_dispatcher(
  					(type == ZEND_INCLUDE) ?
  						ZMSG_FAILED_INCLUDE_FOPEN : ZMSG_FAILED_REQUIRE_FOPEN,
  						Z_STRVAL_P(inc_filename));
  				break;
  			}
  			new_op_array = compile_filename(type, inc_filename);
  			break;
  		case ZEND_EVAL: {
  				char *eval_desc = zend_make_compiled_string_description("eval()'d code");
  				new_op_array = zend_compile_string(inc_filename, eval_desc);
  				efree(eval_desc);
  			}
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE()
  	}
  
  	if (Z_TYPE(tmp_inc_filename) != IS_UNDEF) {
  		zval_ptr_dtor_str(&tmp_inc_filename);
  	}
  	return new_op_array;
  }
  /* }}} */
  
  static zend_never_inline zend_bool ZEND_FASTCALL zend_fe_reset_iterator(zval *array_ptr, int by_ref OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
  {
  	zend_class_entry *ce = Z_OBJCE_P(array_ptr);
  	zend_object_iterator *iter = ce->get_iterator(ce, array_ptr, by_ref);
  	zend_bool is_empty;
  
  	if (UNEXPECTED(!iter) || UNEXPECTED(EG(exception))) {
  		if (iter) {
  			OBJ_RELEASE(&iter->std);
  		}
  		if (!EG(exception)) {
  			zend_throw_exception_ex(NULL, 0, "Object of type %s did not create an Iterator", ZSTR_VAL(ce->name));
  		}
  		ZVAL_UNDEF(EX_VAR(opline->result.var));
  		return 1;
  	}
  
  	iter->index = 0;
  	if (iter->funcs->rewind) {
  		iter->funcs->rewind(iter);
  		if (UNEXPECTED(EG(exception) != NULL)) {
  			OBJ_RELEASE(&iter->std);
  			ZVAL_UNDEF(EX_VAR(opline->result.var));
  			return 1;
  		}
  	}
  
  	is_empty = iter->funcs->valid(iter) != SUCCESS;
  
  	if (UNEXPECTED(EG(exception) != NULL)) {
  		OBJ_RELEASE(&iter->std);
  		ZVAL_UNDEF(EX_VAR(opline->result.var));
  		return 1;
  	}
  	iter->index = -1; /* will be set to 0 before using next handler */
  
  	ZVAL_OBJ(EX_VAR(opline->result.var), &iter->std);
  	Z_FE_ITER_P(EX_VAR(opline->result.var)) = (uint32_t)-1;
  
  	return is_empty;
  }
  /* }}} */
  
  static zend_always_inline int _zend_quick_get_constant(
  		const zval *key, uint32_t flags, int check_defined_only OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
  {
  	zval *zv;
  	zend_constant *c = NULL;
  
  	/* null/true/false are resolved during compilation, so don't check for them here. */
  	zv = zend_hash_find_ex(EG(zend_constants), Z_STR_P(key), 1);
  	if (zv) {
  		c = (zend_constant*)Z_PTR_P(zv);
  	} else if (flags & IS_CONSTANT_UNQUALIFIED_IN_NAMESPACE) {
  		key++;
  		zv = zend_hash_find_ex(EG(zend_constants), Z_STR_P(key), 1);
  		if (zv) {
  			c = (zend_constant*)Z_PTR_P(zv);
  		}
  	}
  
  	if (!c) {
  		if (!check_defined_only) {
  			zend_throw_error(NULL, "Undefined constant \"%s\"", Z_STRVAL_P(RT_CONSTANT(opline, opline->op2)));
  			ZVAL_UNDEF(EX_VAR(opline->result.var));
  		}
  		return FAILURE;
  	}
  
  	if (!check_defined_only) {
  		ZVAL_COPY_OR_DUP(EX_VAR(opline->result.var), &c->value);
  		if (ZEND_CONSTANT_FLAGS(c) & CONST_DEPRECATED) {
  			zend_error(E_DEPRECATED, "Constant %s is deprecated", ZSTR_VAL(c->name));
  			return SUCCESS;
  		}
  	}
  
  	CACHE_PTR(opline->extended_value, c);
  	return SUCCESS;
  }
  /* }}} */
  
  static zend_never_inline void ZEND_FASTCALL zend_quick_get_constant(
  		const zval *key, uint32_t flags OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
  {
  	_zend_quick_get_constant(key, flags, 0 OPLINE_CC EXECUTE_DATA_CC);
  } /* }}} */
  
  static zend_never_inline int ZEND_FASTCALL zend_quick_check_constant(
  		const zval *key OPLINE_DC EXECUTE_DATA_DC) /* {{{ */
  {
  	return _zend_quick_get_constant(key, 0, 1 OPLINE_CC EXECUTE_DATA_CC);
  } /* }}} */
  
  #if defined(ZEND_VM_IP_GLOBAL_REG) && ((ZEND_VM_KIND == ZEND_VM_KIND_CALL) || (ZEND_VM_KIND == ZEND_VM_KIND_HYBRID))
  /* Special versions of functions that sets EX(opline) before calling zend_vm_stack_extend() */
  static zend_always_inline zend_execute_data *_zend_vm_stack_push_call_frame_ex(uint32_t used_stack, uint32_t call_info, zend_function *func, uint32_t num_args, void *object_or_called_scope) /* {{{ */
  {
  	zend_execute_data *call = (zend_execute_data*)EG(vm_stack_top);
  
  	ZEND_ASSERT_VM_STACK_GLOBAL;
  
  	if (UNEXPECTED(used_stack > (size_t)(((char*)EG(vm_stack_end)) - (char*)call))) {
  		EX(opline) = opline; /* this is the only difference */
  		call = (zend_execute_data*)zend_vm_stack_extend(used_stack);
  		ZEND_ASSERT_VM_STACK_GLOBAL;
  		zend_vm_init_call_frame(call, call_info | ZEND_CALL_ALLOCATED, func, num_args, object_or_called_scope);
  		return call;
  	} else {
  		EG(vm_stack_top) = (zval*)((char*)call + used_stack);
  		zend_vm_init_call_frame(call, call_info, func, num_args, object_or_called_scope);
  		return call;
  	}
  } /* }}} */
  
  static zend_always_inline zend_execute_data *_zend_vm_stack_push_call_frame(uint32_t call_info, zend_function *func, uint32_t num_args, void *object_or_called_scope) /* {{{ */
  {
  	uint32_t used_stack = zend_vm_calc_used_stack(num_args, func);
  
  	return _zend_vm_stack_push_call_frame_ex(used_stack, call_info,
  		func, num_args, object_or_called_scope);
  } /* }}} */
  #else
  # define _zend_vm_stack_push_call_frame_ex zend_vm_stack_push_call_frame_ex
  # define _zend_vm_stack_push_call_frame    zend_vm_stack_push_call_frame
  #endif
  
  #ifdef ZEND_VM_TRACE_HANDLERS
  # include "zend_vm_trace_handlers.h"
  #elif defined(ZEND_VM_TRACE_LINES)
  # include "zend_vm_trace_lines.h"
  #elif defined(ZEND_VM_TRACE_MAP)
  # include "zend_vm_trace_map.h"
  #endif
  
  #define ZEND_VM_NEXT_OPCODE_EX(check_exception, skip) \
  	CHECK_SYMBOL_TABLES() \
  	if (check_exception) { \
  		OPLINE = EX(opline) + (skip); \
  	} else { \
  		ZEND_ASSERT(!EG(exception)); \
  		OPLINE = opline + (skip); \
  	} \
  	ZEND_VM_CONTINUE()
  
  #define ZEND_VM_NEXT_OPCODE_CHECK_EXCEPTION() \
  	ZEND_VM_NEXT_OPCODE_EX(1, 1)
  
  #define ZEND_VM_NEXT_OPCODE() \
  	ZEND_VM_NEXT_OPCODE_EX(0, 1)
  
  #define ZEND_VM_SET_NEXT_OPCODE(new_op) \
  	CHECK_SYMBOL_TABLES() \
  	OPLINE = new_op
  
  #define ZEND_VM_SET_OPCODE(new_op) \
  	CHECK_SYMBOL_TABLES() \
  	OPLINE = new_op; \
  	ZEND_VM_INTERRUPT_CHECK()
  
  #define ZEND_VM_SET_RELATIVE_OPCODE(opline, offset) \
  	ZEND_VM_SET_OPCODE(ZEND_OFFSET_TO_OPLINE(opline, offset))
  
  #define ZEND_VM_JMP_EX(new_op, check_exception) do { \
  		if (check_exception && UNEXPECTED(EG(exception))) { \
  			HANDLE_EXCEPTION(); \
  		} \
  		ZEND_VM_SET_OPCODE(new_op); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  
  #define ZEND_VM_JMP(new_op) \
  	ZEND_VM_JMP_EX(new_op, 1)
  
  #define ZEND_VM_INC_OPCODE() \
  	OPLINE++
  
  
  #define ZEND_VM_REPEATABLE_OPCODE \
  	do {
  #define ZEND_VM_REPEAT_OPCODE(_opcode) \
  	} while (UNEXPECTED((++opline)->opcode == _opcode)); \
  	OPLINE = opline; \
  	ZEND_VM_CONTINUE()
  #define ZEND_VM_SMART_BRANCH(_result, _check) do { \
  		if ((_check) && UNEXPECTED(EG(exception))) { \
  			OPLINE = EX(opline); \
  		} else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
  			if (_result) { \
  				ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  			} else { \
  				ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  			} \
  		} else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
  			if (!(_result)) { \
  				ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  			} else { \
  				ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  			} \
  		} else { \
  			ZVAL_BOOL(EX_VAR(opline->result.var), _result); \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
  		} \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_JMPZ(_result, _check) do { \
  		if ((_check) && UNEXPECTED(EG(exception))) { \
  			OPLINE = EX(opline); \
  		} else if (_result) { \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		} else { \
  			ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		} \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_JMPNZ(_result, _check) do { \
  		if ((_check) && UNEXPECTED(EG(exception))) { \
  			OPLINE = EX(opline); \
  		} else if (!(_result)) { \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		} else { \
  			ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		} \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_NONE(_result, _check) do { \
  		ZVAL_BOOL(EX_VAR(opline->result.var), _result); \
  		ZEND_VM_NEXT_OPCODE_EX(_check, 1); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_TRUE() do { \
  		if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
  			ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		} else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		} else { \
  			ZVAL_TRUE(EX_VAR(opline->result.var)); \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
  		} \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_TRUE_JMPZ() do { \
  		ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_TRUE_JMPNZ() do { \
  		ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_TRUE_NONE() do { \
  		ZVAL_TRUE(EX_VAR(opline->result.var)); \
  		ZEND_VM_NEXT_OPCODE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_FALSE() do { \
  		if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPNZ|IS_TMP_VAR))) { \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		} else if (EXPECTED(opline->result_type == (IS_SMART_BRANCH_JMPZ|IS_TMP_VAR))) { \
  			ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		} else { \
  			ZVAL_FALSE(EX_VAR(opline->result.var)); \
  			ZEND_VM_SET_NEXT_OPCODE(opline + 1); \
  		} \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_FALSE_JMPZ() do { \
  		ZEND_VM_SET_OPCODE(OP_JMP_ADDR(opline + 1, (opline+1)->op2)); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_FALSE_JMPNZ() do { \
  		ZEND_VM_SET_NEXT_OPCODE(opline + 2); \
  		ZEND_VM_CONTINUE(); \
  	} while (0)
  #define ZEND_VM_SMART_BRANCH_FALSE_NONE() do { \
  		ZVAL_FALSE(EX_VAR(opline->result.var)); \
  		ZEND_VM_NEXT_OPCODE(); \
  	} while (0)
  
  #ifdef __GNUC__
  # define ZEND_VM_GUARD(name) __asm__("#" #name)
  #else
  # define ZEND_VM_GUARD(name)
  #endif
  
  #define UNDEF_RESULT() do { \
  		if (opline->result_type & (IS_VAR | IS_TMP_VAR)) { \
  			ZVAL_UNDEF(EX_VAR(opline->result.var)); \
  		} \
  	} while (0)
  
  #include "zend_vm_execute.h"
  
  ZEND_API int zend_set_user_opcode_handler(zend_uchar opcode, user_opcode_handler_t handler)
  {
  	if (opcode != ZEND_USER_OPCODE) {
  		if (handler == NULL) {
  			/* restore the original handler */
  			zend_user_opcodes[opcode] = opcode;
  		} else {
  			zend_user_opcodes[opcode] = ZEND_USER_OPCODE;
  		}
  		zend_user_opcode_handlers[opcode] = handler;
  		return SUCCESS;
  	}
  	return FAILURE;
  }
  
  ZEND_API user_opcode_handler_t zend_get_user_opcode_handler(zend_uchar opcode)
  {
  	return zend_user_opcode_handlers[opcode];
  }
  
  ZEND_API zval *zend_get_zval_ptr(const zend_op *opline, int op_type, const znode_op *node, const zend_execute_data *execute_data)
  {
  	zval *ret;
  
  	switch (op_type) {
  		case IS_CONST:
  			ret = RT_CONSTANT(opline, *node);
  			break;
  		case IS_TMP_VAR:
  		case IS_VAR:
  		case IS_CV:
  			ret = EX_VAR(node->var);
  			break;
  		default:
  			ret = NULL;
  			break;
  	}
  	return ret;
  }
  