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: Marcus Boerger <helly@php.net>                              |
     +----------------------------------------------------------------------+
  */
  
  #include "zend.h"
  #include "zend_API.h"
  #include "zend_interfaces.h"
  #include "zend_exceptions.h"
  #include "zend_interfaces_arginfo.h"
  
  ZEND_API zend_class_entry *zend_ce_traversable;
  ZEND_API zend_class_entry *zend_ce_aggregate;
  ZEND_API zend_class_entry *zend_ce_iterator;
  ZEND_API zend_class_entry *zend_ce_arrayaccess;
  ZEND_API zend_class_entry *zend_ce_serializable;
  ZEND_API zend_class_entry *zend_ce_countable;
  ZEND_API zend_class_entry *zend_ce_stringable;
  ZEND_API zend_class_entry *zend_ce_internal_iterator;
  
  static zend_object_handlers zend_internal_iterator_handlers;
  
  /* {{{ zend_call_method
   Only returns the returned zval if retval_ptr != NULL */
  ZEND_API zval* zend_call_method(zend_object *object, zend_class_entry *obj_ce, zend_function **fn_proxy, const char *function_name, size_t function_name_len, zval *retval_ptr, uint32_t param_count, zval* arg1, zval* arg2)
  {
  	zend_function *fn;
  	zend_class_entry *called_scope;
  	zval params[2];
  
  	if (param_count > 0) {
  		ZVAL_COPY_VALUE(&params[0], arg1);
  	}
  	if (param_count > 1) {
  		ZVAL_COPY_VALUE(&params[1], arg2);
  	}
  
  	if (!obj_ce) {
  		obj_ce = object ? object->ce : NULL;
  	}
  	if (!fn_proxy || !*fn_proxy) {
  		if (EXPECTED(obj_ce)) {
  			fn = zend_hash_str_find_ptr_lc(
  				&obj_ce->function_table, function_name, function_name_len);
  			if (UNEXPECTED(fn == NULL)) {
  				/* error at c-level */
  				zend_error_noreturn(E_CORE_ERROR, "Couldn't find implementation for method %s::%s", ZSTR_VAL(obj_ce->name), function_name);
  			}
  		} else {
  			fn = zend_fetch_function_str(function_name, function_name_len);
  			if (UNEXPECTED(fn == NULL)) {
  				/* error at c-level */
  				zend_error_noreturn(E_CORE_ERROR, "Couldn't find implementation for function %s", function_name);
  			}
  		}
  		if (fn_proxy) {
  			*fn_proxy = fn;
  		}
  	} else {
  		fn = *fn_proxy;
  	}
  
  	if (object) {
  		called_scope = object->ce;
  	} else {
  		called_scope = obj_ce;
  	}
  
  	zend_call_known_function(fn, object, called_scope, retval_ptr, param_count, params, NULL);
  	return retval_ptr;
  }
  /* }}} */
  
  /* iterator interface, c-level functions used by engine */
  
  /* {{{ zend_user_it_new_iterator */
  ZEND_API void zend_user_it_new_iterator(zend_class_entry *ce, zval *object, zval *retval)
  {
  	zend_call_known_instance_method_with_0_params(
  		ce->iterator_funcs_ptr->zf_new_iterator, Z_OBJ_P(object), retval);
  }
  /* }}} */
  
  /* {{{ zend_user_it_invalidate_current */
  ZEND_API void zend_user_it_invalidate_current(zend_object_iterator *_iter)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  
  	if (!Z_ISUNDEF(iter->value)) {
  		zval_ptr_dtor(&iter->value);
  		ZVAL_UNDEF(&iter->value);
  	}
  }
  /* }}} */
  
  /* {{{ zend_user_it_dtor */
  static void zend_user_it_dtor(zend_object_iterator *_iter)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  	zval *object = &iter->it.data;
  
  	zend_user_it_invalidate_current(_iter);
  	zval_ptr_dtor(object);
  }
  /* }}} */
  
  /* {{{ zend_user_it_valid */
  ZEND_API int zend_user_it_valid(zend_object_iterator *_iter)
  {
  	if (_iter) {
  		zend_user_iterator *iter = (zend_user_iterator*)_iter;
  		zval *object = &iter->it.data;
  		zval more;
  		bool result;
  
  		zend_call_method_with_0_params(Z_OBJ_P(object), iter->ce, &iter->ce->iterator_funcs_ptr->zf_valid, "valid", &more);
  		result = i_zend_is_true(&more);
  		zval_ptr_dtor(&more);
  		return result ? SUCCESS : FAILURE;
  	}
  	return FAILURE;
  }
  /* }}} */
  
  /* {{{ zend_user_it_get_current_data */
  ZEND_API zval *zend_user_it_get_current_data(zend_object_iterator *_iter)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  	zval *object = &iter->it.data;
  
  	if (Z_ISUNDEF(iter->value)) {
  		zend_call_method_with_0_params(Z_OBJ_P(object), iter->ce, &iter->ce->iterator_funcs_ptr->zf_current, "current", &iter->value);
  	}
  	return &iter->value;
  }
  /* }}} */
  
  /* {{{ zend_user_it_get_current_key */
  ZEND_API void zend_user_it_get_current_key(zend_object_iterator *_iter, zval *key)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  	zval *object = &iter->it.data;
  	zend_call_method_with_0_params(Z_OBJ_P(object), iter->ce, &iter->ce->iterator_funcs_ptr->zf_key, "key", key);
  	if (UNEXPECTED(Z_ISREF_P(key))) {
  		zend_unwrap_reference(key);
  	}
  }
  /* }}} */
  
  /* {{{ zend_user_it_move_forward */
  ZEND_API void zend_user_it_move_forward(zend_object_iterator *_iter)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  	zval *object = &iter->it.data;
  
  	zend_user_it_invalidate_current(_iter);
  	zend_call_method_with_0_params(Z_OBJ_P(object), iter->ce, &iter->ce->iterator_funcs_ptr->zf_next, "next", NULL);
  }
  /* }}} */
  
  /* {{{ zend_user_it_rewind */
  ZEND_API void zend_user_it_rewind(zend_object_iterator *_iter)
  {
  	zend_user_iterator *iter = (zend_user_iterator*)_iter;
  	zval *object = &iter->it.data;
  
  	zend_user_it_invalidate_current(_iter);
  	zend_call_method_with_0_params(Z_OBJ_P(object), iter->ce, &iter->ce->iterator_funcs_ptr->zf_rewind, "rewind", NULL);
  }
  /* }}} */
  
  static const zend_object_iterator_funcs zend_interface_iterator_funcs_iterator = {
  	zend_user_it_dtor,
  	zend_user_it_valid,
  	zend_user_it_get_current_data,
  	zend_user_it_get_current_key,
  	zend_user_it_move_forward,
  	zend_user_it_rewind,
  	zend_user_it_invalidate_current,
  	NULL, /* get_gc */
  };
  
  /* {{{ zend_user_it_get_iterator */
  /* by_ref is int due to Iterator API */
  static zend_object_iterator *zend_user_it_get_iterator(zend_class_entry *ce, zval *object, int by_ref)
  {
  	zend_user_iterator *iterator;
  
  	if (by_ref) {
  		zend_throw_error(NULL, "An iterator cannot be used with foreach by reference");
  		return NULL;
  	}
  
  	iterator = emalloc(sizeof(zend_user_iterator));
  
  	zend_iterator_init((zend_object_iterator*)iterator);
  
  	ZVAL_OBJ_COPY(&iterator->it.data, Z_OBJ_P(object));
  	iterator->it.funcs = &zend_interface_iterator_funcs_iterator;
  	iterator->ce = Z_OBJCE_P(object);
  	ZVAL_UNDEF(&iterator->value);
  	return (zend_object_iterator*)iterator;
  }
  /* }}} */
  
  /* {{{ zend_user_it_get_new_iterator */
  /* by_ref is int due to Iterator API */
  ZEND_API zend_object_iterator *zend_user_it_get_new_iterator(zend_class_entry *ce, zval *object, int by_ref)
  {
  	zval iterator;
  	zend_object_iterator *new_iterator;
  	zend_class_entry *ce_it;
  
  	zend_user_it_new_iterator(ce, object, &iterator);
  	ce_it = (Z_TYPE(iterator) == IS_OBJECT) ? Z_OBJCE(iterator) : NULL;
  
  	if (!ce_it || !ce_it->get_iterator || (ce_it->get_iterator == zend_user_it_get_new_iterator && Z_OBJ(iterator) == Z_OBJ_P(object))) {
  		if (!EG(exception)) {
  			zend_throw_exception_ex(NULL, 0, "Objects returned by %s::getIterator() must be traversable or implement interface Iterator", ce ? ZSTR_VAL(ce->name) : ZSTR_VAL(Z_OBJCE_P(object)->name));
  		}
  		zval_ptr_dtor(&iterator);
  		return NULL;
  	}
  
  	new_iterator = ce_it->get_iterator(ce_it, &iterator, by_ref);
  	zval_ptr_dtor(&iterator);
  	return new_iterator;
  }
  /* }}} */
  
  /* {{{ zend_implement_traversable */
  static int zend_implement_traversable(zend_class_entry *interface, zend_class_entry *class_type)
  {
  	/* Abstract class can implement Traversable only, in which case the extending class must
  	 * implement Iterator or IteratorAggregate. */
  	if (class_type->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS) {
  		return SUCCESS;
  	}
  
  	/* Check that class_type implements at least one of 'IteratorAggregate' or 'Iterator' */
  	if (class_type->num_interfaces) {
  		ZEND_ASSERT(class_type->ce_flags & ZEND_ACC_RESOLVED_INTERFACES);
  		for (uint32_t i = 0; i < class_type->num_interfaces; i++) {
  			if (class_type->interfaces[i] == zend_ce_aggregate || class_type->interfaces[i] == zend_ce_iterator) {
  				return SUCCESS;
  			}
  		}
  	}
  	zend_error_noreturn(E_CORE_ERROR, "Class %s must implement interface %s as part of either %s or %s",
  		ZSTR_VAL(class_type->name),
  		ZSTR_VAL(zend_ce_traversable->name),
  		ZSTR_VAL(zend_ce_iterator->name),
  		ZSTR_VAL(zend_ce_aggregate->name));
  	return FAILURE;
  }
  /* }}} */
  
  /* {{{ zend_implement_aggregate */
  static int zend_implement_aggregate(zend_class_entry *interface, zend_class_entry *class_type)
  {
  	if (zend_class_implements_interface(class_type, zend_ce_iterator)) {
  		zend_error_noreturn(E_ERROR,
  			"Class %s cannot implement both Iterator and IteratorAggregate at the same time",
  			ZSTR_VAL(class_type->name));
  	}
  
  	zend_function *zf = zend_hash_str_find_ptr(
  		&class_type->function_table, "getiterator", sizeof("getiterator") - 1);
  	if (class_type->get_iterator && class_type->get_iterator != zend_user_it_get_new_iterator) {
  		/* get_iterator was explicitly assigned for an internal class. */
  		if (!class_type->parent || class_type->parent->get_iterator != class_type->get_iterator) {
  			ZEND_ASSERT(class_type->type == ZEND_INTERNAL_CLASS);
  			return SUCCESS;
  		}
  
  		/* The getIterator() method has not been overwritten, use inherited get_iterator(). */
  		if (zf->common.scope != class_type) {
  			return SUCCESS;
  		}
  
  		/* getIterator() has been overwritten, switch to zend_user_it_get_new_iterator. */
  	}
  
  	ZEND_ASSERT(!class_type->iterator_funcs_ptr && "Iterator funcs already set?");
  	zend_class_iterator_funcs *funcs_ptr = class_type->type == ZEND_INTERNAL_CLASS
  		? pemalloc(sizeof(zend_class_iterator_funcs), 1)
  		: zend_arena_alloc(&CG(arena), sizeof(zend_class_iterator_funcs));
  	class_type->get_iterator = zend_user_it_get_new_iterator;
  	class_type->iterator_funcs_ptr = funcs_ptr;
  
  	memset(funcs_ptr, 0, sizeof(zend_class_iterator_funcs));
  	funcs_ptr->zf_new_iterator = zf;
  
  	return SUCCESS;
  }
  /* }}} */
  
  /* {{{ zend_implement_iterator */
  static int zend_implement_iterator(zend_class_entry *interface, zend_class_entry *class_type)
  {
  	if (zend_class_implements_interface(class_type, zend_ce_aggregate)) {
  		zend_error_noreturn(E_ERROR,
  			"Class %s cannot implement both Iterator and IteratorAggregate at the same time",
  			ZSTR_VAL(class_type->name));
  	}
  
  	if (class_type->get_iterator && class_type->get_iterator != zend_user_it_get_iterator) {
  		if (!class_type->parent || class_type->parent->get_iterator != class_type->get_iterator) {
  			/* get_iterator was explicitly assigned for an internal class. */
  			ZEND_ASSERT(class_type->type == ZEND_INTERNAL_CLASS);
  			return SUCCESS;
  		}
  		/* Otherwise get_iterator was inherited from the parent by default. */
  	}
  
  	if (class_type->parent && (class_type->parent->ce_flags & ZEND_ACC_REUSE_GET_ITERATOR)) {
  		/* Keep the inherited get_iterator handler. */
  		class_type->ce_flags |= ZEND_ACC_REUSE_GET_ITERATOR;
  	} else {
  		class_type->get_iterator = zend_user_it_get_iterator;
  	}
  
  	ZEND_ASSERT(!class_type->iterator_funcs_ptr && "Iterator funcs already set?");
  	zend_class_iterator_funcs *funcs_ptr = class_type->type == ZEND_INTERNAL_CLASS
  		? pemalloc(sizeof(zend_class_iterator_funcs), 1)
  		: zend_arena_alloc(&CG(arena), sizeof(zend_class_iterator_funcs));
  	memset(funcs_ptr, 0, sizeof(zend_class_iterator_funcs));
  	class_type->iterator_funcs_ptr = funcs_ptr;
  
  	return SUCCESS;
  }
  /* }}} */
  
  /* {{{ zend_user_serialize */
  ZEND_API int zend_user_serialize(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data)
  {
  	zend_class_entry * ce = Z_OBJCE_P(object);
  	zval retval;
  	zend_result result;
  
  	zend_call_method_with_0_params(
  		Z_OBJ_P(object), Z_OBJCE_P(object), NULL, "serialize", &retval);
  
  	if (Z_TYPE(retval) == IS_UNDEF || EG(exception)) {
  		result = FAILURE;
  	} else {
  		switch(Z_TYPE(retval)) {
  		case IS_NULL:
  			/* we could also make this '*buf_len = 0' but this allows to skip variables */
  			zval_ptr_dtor(&retval);
  			return FAILURE;
  		case IS_STRING:
  			*buffer = (unsigned char*)estrndup(Z_STRVAL(retval), Z_STRLEN(retval));
  			*buf_len = Z_STRLEN(retval);
  			result = SUCCESS;
  			break;
  		default: /* failure */
  			result = FAILURE;
  			break;
  		}
  		zval_ptr_dtor(&retval);
  	}
  
  	if (result == FAILURE && !EG(exception)) {
  		zend_throw_exception_ex(NULL, 0, "%s::serialize() must return a string or NULL", ZSTR_VAL(ce->name));
  	}
  	return result;
  }
  /* }}} */
  
  /* {{{ zend_user_unserialize */
  ZEND_API int zend_user_unserialize(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data)
  {
  	zval zdata;
  
  	if (UNEXPECTED(object_init_ex(object, ce) != SUCCESS)) {
  		return FAILURE;
  	}
  
  	ZVAL_STRINGL(&zdata, (char*)buf, buf_len);
  	zend_call_method_with_1_params(
  		Z_OBJ_P(object), Z_OBJCE_P(object), NULL, "unserialize", NULL, &zdata);
  	zval_ptr_dtor(&zdata);
  
  	if (EG(exception)) {
  		return FAILURE;
  	} else {
  		return SUCCESS;
  	}
  }
  /* }}} */
  
  /* {{{ zend_implement_serializable */
  static int zend_implement_serializable(zend_class_entry *interface, zend_class_entry *class_type)
  {
  	if (class_type->parent
  		&& (class_type->parent->serialize || class_type->parent->unserialize)
  		&& !zend_class_implements_interface(class_type->parent, zend_ce_serializable)) {
  		return FAILURE;
  	}
  	if (!class_type->serialize) {
  		class_type->serialize = zend_user_serialize;
  	}
  	if (!class_type->unserialize) {
  		class_type->unserialize = zend_user_unserialize;
  	}
  	if (!(class_type->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)
  			&& (!class_type->__serialize || !class_type->__unserialize)) {
  		zend_error(E_DEPRECATED, "The Serializable interface is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary)");
  	}
  	return SUCCESS;
  }
  /* }}}*/
  
  typedef struct {
  	zend_object std;
  	zend_object_iterator *iter;
  	bool rewind_called;
  } zend_internal_iterator;
  
  static zend_object *zend_internal_iterator_create(zend_class_entry *ce) {
  	zend_internal_iterator *intern = emalloc(sizeof(zend_internal_iterator));
  	zend_object_std_init(&intern->std, ce);
  	intern->std.handlers = &zend_internal_iterator_handlers;
  	intern->iter = NULL;
  	intern->rewind_called = 0;
  	return &intern->std;
  }
  
  ZEND_API zend_result zend_create_internal_iterator_zval(zval *return_value, zval *obj) {
  	zend_class_entry *scope = EG(current_execute_data)->func->common.scope;
  	ZEND_ASSERT(scope->get_iterator != zend_user_it_get_new_iterator);
  	zend_object_iterator *iter = scope->get_iterator(Z_OBJCE_P(obj), obj, /* by_ref */ 0);
  	if (!iter) {
  		return FAILURE;
  	}
  
  	zend_internal_iterator *intern =
  		(zend_internal_iterator *) zend_internal_iterator_create(zend_ce_internal_iterator);
  	intern->iter = iter;
  	intern->iter->index = 0;
  	ZVAL_OBJ(return_value, &intern->std);
  	return SUCCESS;
  }
  
  static void zend_internal_iterator_free(zend_object *obj) {
  	zend_internal_iterator *intern = (zend_internal_iterator *) obj;
  	if (intern->iter) {
  		zend_iterator_dtor(intern->iter);
  	}
  	zend_object_std_dtor(&intern->std);
  }
  
  static zend_internal_iterator *zend_internal_iterator_fetch(zval *This) {
  	zend_internal_iterator *intern = (zend_internal_iterator *) Z_OBJ_P(This);
  	if (!intern->iter) {
  		zend_throw_error(NULL, "The InternalIterator object has not been properly initialized");
  		return NULL;
  	}
  	return intern;
  }
  
  /* Many iterators will not behave correctly if rewind() is not called, make sure it happens. */
  static zend_result zend_internal_iterator_ensure_rewound(zend_internal_iterator *intern) {
  	if (!intern->rewind_called) {
  		zend_object_iterator *iter = intern->iter;
  		intern->rewind_called = 1;
  		if (iter->funcs->rewind) {
  			iter->funcs->rewind(iter);
  			if (UNEXPECTED(EG(exception))) {
  				return FAILURE;
  			}
  		}
  	}
  	return SUCCESS;
  }
  
  
  ZEND_METHOD(InternalIterator, __construct) {
  	zend_throw_error(NULL, "Cannot manually construct InternalIterator");
  }
  
  ZEND_METHOD(InternalIterator, current) {
  	ZEND_PARSE_PARAMETERS_NONE();
  
  	zend_internal_iterator *intern = zend_internal_iterator_fetch(ZEND_THIS);
  	if (!intern) {
  		RETURN_THROWS();
  	}
  
  	if (zend_internal_iterator_ensure_rewound(intern) == FAILURE) {
  		RETURN_THROWS();
  	}
  
  	zval *data = intern->iter->funcs->get_current_data(intern->iter);
  	if (data) {
  		RETURN_COPY_DEREF(data);
  	}
  }
  
  ZEND_METHOD(InternalIterator, key) {
  	ZEND_PARSE_PARAMETERS_NONE();
  
  	zend_internal_iterator *intern = zend_internal_iterator_fetch(ZEND_THIS);
  	if (!intern) {
  		RETURN_THROWS();
  	}
  
  	if (zend_internal_iterator_ensure_rewound(intern) == FAILURE) {
  		RETURN_THROWS();
  	}
  
  	if (intern->iter->funcs->get_current_key) {
  		intern->iter->funcs->get_current_key(intern->iter, return_value);
  	} else {
  		RETURN_LONG(intern->iter->index);
  	}
  }
  
  ZEND_METHOD(InternalIterator, next) {
  	ZEND_PARSE_PARAMETERS_NONE();
  
  	zend_internal_iterator *intern = zend_internal_iterator_fetch(ZEND_THIS);
  	if (!intern) {
  		RETURN_THROWS();
  	}
  
  	if (zend_internal_iterator_ensure_rewound(intern) == FAILURE) {
  		RETURN_THROWS();
  	}
  
  	/* Advance index first to match foreach behavior. */
  	intern->iter->index++;
  	intern->iter->funcs->move_forward(intern->iter);
  }
  
  ZEND_METHOD(InternalIterator, valid) {
  	ZEND_PARSE_PARAMETERS_NONE();
  
  	zend_internal_iterator *intern = zend_internal_iterator_fetch(ZEND_THIS);
  	if (!intern) {
  		RETURN_THROWS();
  	}
  
  	if (zend_internal_iterator_ensure_rewound(intern) == FAILURE) {
  		RETURN_THROWS();
  	}
  
  	RETURN_BOOL(intern->iter->funcs->valid(intern->iter) == SUCCESS);
  }
  
  ZEND_METHOD(InternalIterator, rewind) {
  	ZEND_PARSE_PARAMETERS_NONE();
  
  	zend_internal_iterator *intern = zend_internal_iterator_fetch(ZEND_THIS);
  	if (!intern) {
  		RETURN_THROWS();
  	}
  
  	if (!intern->iter->funcs->rewind) {
  		/* Allow calling rewind() if no iteration has happened yet,
  		 * even if the iterator does not support rewinding. */
  		if (intern->iter->index != 0) {
  			zend_throw_error(NULL, "Iterator does not support rewinding");
  			RETURN_THROWS();
  		}
  		intern->iter->index = 0;
  		return;
  	}
  
  	intern->iter->funcs->rewind(intern->iter);
  	intern->iter->index = 0;
  }
  
  /* {{{ zend_register_interfaces */
  ZEND_API void zend_register_interfaces(void)
  {
  	zend_ce_traversable = register_class_Traversable();
  	zend_ce_traversable->interface_gets_implemented = zend_implement_traversable;
  
  	zend_ce_aggregate = register_class_IteratorAggregate(zend_ce_traversable);
  	zend_ce_aggregate->interface_gets_implemented = zend_implement_aggregate;
  
  	zend_ce_iterator = register_class_Iterator(zend_ce_traversable);
  	zend_ce_iterator->interface_gets_implemented = zend_implement_iterator;
  
  	zend_ce_serializable = register_class_Serializable();
  	zend_ce_serializable->interface_gets_implemented = zend_implement_serializable;
  
  	zend_ce_arrayaccess = register_class_ArrayAccess();
  
  	zend_ce_countable = register_class_Countable();
  
  	zend_ce_stringable = register_class_Stringable();
  
  	zend_ce_internal_iterator = register_class_InternalIterator(zend_ce_iterator);
  	zend_ce_internal_iterator->create_object = zend_internal_iterator_create;
  
  	memcpy(&zend_internal_iterator_handlers, zend_get_std_object_handlers(),
  		sizeof(zend_object_handlers));
  	zend_internal_iterator_handlers.free_obj = zend_internal_iterator_free;
  }
  /* }}} */
  