text: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License. You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied. See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  #include <string>
  #include <fstream>
  #include <iostream>
  #include <vector>
  
  #include <stdlib.h>
  #include <sys/stat.h>
  #include <sstream>
  #include "t_oop_generator.h"
  #include "platform.h"
  
  using std::map;
  using std::ofstream;
  using std::ostringstream;
  using std::string;
  using std::stringstream;
  using std::vector;
  
  static const string endl = "\n";  // avoid ostream << std::endl flushes
  
  #define NSGLOBAL  (nsglobal_.size() ? nsglobal_ : "")
  #define NSGLOBAL_A ("\\" + NSGLOBAL )
  #define NSGLOBAL_B ( NSGLOBAL + "\\")
  #define NSGLOBAL_AB ("\\" + NSGLOBAL + "\\")
  
  
  /**
   * PHP code generator.
   *
   */
  class t_php_generator : public t_oop_generator {
   public:
    t_php_generator(
        t_program* program,
        const std::map<std::string, std::string>& parsed_options,
        const std::string& option_string)
      : t_oop_generator(program)
    {
      (void) option_string;
      std::map<std::string, std::string>::const_iterator iter;
  
      iter = parsed_options.find("inlined");
      binary_inline_ = (iter != parsed_options.end());
  
      iter = parsed_options.find("rest");
      rest_ = (iter != parsed_options.end());
  
      iter = parsed_options.find("server");
      phps_ = (iter != parsed_options.end());
  
      iter = parsed_options.find("oop");
      oop_ = (iter != parsed_options.end());
  
      iter = parsed_options.find("validate");
      validate_ = (iter != parsed_options.end());
  
      iter = parsed_options.find("nsglobal");
      if(iter != parsed_options.end()) {
        nsglobal_ = iter->second;
      }
      else {
        nsglobal_ = ""; // by default global namespace is empty
      }
  
      if (oop_ && binary_inline_) {
        throw "oop and inlined are mutually exclusive.";
      }
  
      out_dir_base_ = (binary_inline_ ? "gen-phpi" : "gen-php");
      escape_['$'] = "\\$";
    }
  
    static bool is_valid_namespace(const std::string& sub_namespace);
  
    /**
     * Init and close methods
     */
  
    void init_generator();
    void close_generator();
  
    /**
     * Program-level generation functions
     */
  
    void generate_typedef  (t_typedef*  ttypedef);
    void generate_enum     (t_enum*     tenum);
    void generate_const    (t_const*    tconst);
    void generate_consts   (vector<t_const*> consts);
    void generate_struct   (t_struct*   tstruct);
    void generate_xception (t_struct*   txception);
    void generate_service  (t_service*  tservice);
  
    std::string render_const_value(t_type* type, t_const_value* value);
  
    /**
     * Structs!
     */
  
    void generate_php_struct(t_struct* tstruct, bool is_exception);
    void generate_php_struct_definition(std::ofstream& out, t_struct* tstruct, bool is_xception=false);
    void generate_php_struct_reader(std::ofstream& out, t_struct* tstruct);
    void generate_php_struct_writer(std::ofstream& out, t_struct* tstruct);
    void generate_php_function_helpers(t_function* tfunction);
    void generate_php_struct_required_validator(ofstream& out, t_struct* tstruct, std::string method_name, bool write_mode);
    void generate_php_struct_read_validator(ofstream& out, t_struct* tstruct);
    void generate_php_struct_write_validator(ofstream& out, t_struct* tstruct);
    bool needs_php_write_validator(t_struct* tstruct);
    bool needs_php_read_validator(t_struct* tstruct);
    int get_php_num_required_fields(const vector<t_field*>& fields, bool write_mode);
  
    void generate_php_type_spec(std::ofstream &out, t_type* t);
    void generate_php_struct_spec(std::ofstream &out, t_struct* tstruct);
  
    /**
     * Service-level generation functions
     */
  
    void generate_service_helpers   (t_service* tservice);
    void generate_service_interface (t_service* tservice);
    void generate_service_rest      (t_service* tservice);
    void generate_service_client    (t_service* tservice);
    void generate_service_processor (t_service* tservice);
    void generate_process_function  (t_service* tservice, t_function* tfunction);
  
    /**
     * Serialization constructs
     */
  
    void generate_deserialize_field        (std::ofstream &out,
                                            t_field*    tfield,
                                            std::string prefix="",
                                            bool inclass=false);
  
    void generate_deserialize_struct       (std::ofstream &out,
                                            t_struct*   tstruct,
                                            std::string prefix="");
  
    void generate_deserialize_container    (std::ofstream &out,
                                            t_type*     ttype,
                                            std::string prefix="");
  
    void generate_deserialize_set_element  (std::ofstream &out,
                                            t_set*      tset,
                                            std::string prefix="");
  
    void generate_deserialize_map_element  (std::ofstream &out,
                                            t_map*      tmap,
                                            std::string prefix="");
  
    void generate_deserialize_list_element (std::ofstream &out,
                                            t_list*     tlist,
                                            std::string prefix="");
  
    void generate_serialize_field          (std::ofstream &out,
                                            t_field*    tfield,
                                            std::string prefix="");
  
    void generate_serialize_struct         (std::ofstream &out,
                                            t_struct*   tstruct,
                                            std::string prefix="");
  
    void generate_serialize_container      (std::ofstream &out,
                                            t_type*     ttype,
                                            std::string prefix="");
  
    void generate_serialize_map_element    (std::ofstream &out,
                                            t_map*      tmap,
                                            std::string kiter,
                                            std::string viter);
  
    void generate_serialize_set_element    (std::ofstream &out,
                                            t_set*      tmap,
                                            std::string iter);
  
    void generate_serialize_list_element   (std::ofstream &out,
                                            t_list*     tlist,
                                            std::string iter);
  
    void generate_php_doc                  (std::ofstream& out,
                                            t_doc*      tdoc);
  
    void generate_php_doc                  (std::ofstream& out,
                                            t_field*    tfield);
  
    void generate_php_doc                  (std::ofstream& out,
                                            t_function* tfunction);
  
    void generate_php_docstring_comment    (std::ofstream &out,
                                            string contents);
  
    /**
     * Helper rendering functions
     */
  
    std::string php_includes();
    std::string declare_field(t_field* tfield, bool init=false, bool obj=false);
    std::string function_signature(t_function* tfunction, std::string prefix="");
    std::string argument_list(t_struct* tstruct, bool addTypeHints = true);
    std::string type_to_cast(t_type* ttype);
    std::string type_to_enum(t_type* ttype);
    std::string type_to_phpdoc(t_type* ttype);
  
    std::string php_namespace_base(const t_program* p) {
      std::string ns = p->get_namespace("php");
      const char * delimiter = "\\";
      size_t position = ns.find('.');
      while (position != string::npos) {
        ns.replace(position, 1, delimiter);
        position = ns.find('.', position + 1);
      }
      return ns;
    }
  
    //general use namespace prefixing: \my\namespace\ or my_namespace_
    string php_namespace(const t_program* p) {
      string ns = php_namespace_base(p);
      return (nsglobal_.size() ? NSGLOBAL_AB : NSGLOBAL_B) + (ns.size() ? (ns + "\\") : "");
    }
  
    //setting the namespace of a file: my\namespace
    string php_namespace_suffix(const t_program* p) {
      string ns = php_namespace_base(p);
  
      return (nsglobal_.size() ? NSGLOBAL_B : NSGLOBAL) + ns;
    }
  
    //add a directory to allready existing namespace
    string php_namespace_directory(string directory, bool end = true) {
      if(end) {
        return ";";
      } else {
        return "";
      }
    }
  
    //writing an autload identifier into globa;ls: my\namespace\ or my_namespace_
    string php_namespace_autoload(const t_program* p) {
      std::string ns = php_namespace_base(p);
      return (nsglobal_.size() ? NSGLOBAL_B : NSGLOBAL) + (ns.size() ? (ns + "\\") : "");
    }
  
    //declaring a type: typename or my_namespace_typename
    string php_namespace_declaration(t_type* t) {
      return t->get_name();
    }
  
    std::string php_path(t_program* p) {
      std::string ns = p->get_namespace("php.path");
      if (ns.empty()) {
        return p->get_name();
      }
  
      // Transform the java-style namespace into a path.
      for (std::string::iterator it = ns.begin(); it != ns.end(); ++it) {
        if (*it == '.') {
          *it = '/';
        }
      }
  
      return ns + '/';
    }
  
    /**
     * Transform class_method into ClassMethod
     *
     * @param str
     * @return stirng
     */
    string classify(string str)
    {
      string classe = "";
  
      vector<string> x = split(str, '_');
  
      for (size_t i = 0; i < x.size(); ++i) {
        classe = classe + capitalize(x[i]);
      }
  
      return classe;
    }
  
    /**
     * Split method
     * @param s
     * @param delim
     * @param elems
     * @return
     */
    vector<string> &split(const string &s, char delim, vector<string> &elems) {
      stringstream ss(s);
      string item;
  
      while(getline(ss, item, delim)) {
        elems.push_back(item);
      }
  
      return elems;
    }
  
    vector<string> split(const string &s, char delim) {
      vector<string> elems;
  
      return split(s, delim, elems);
    }
  
    /**
     * Capitalize method
     * @param str
     * @return
     */
    string capitalize(string str)
    {
      string::iterator it(str.begin());
  
      if (it != str.end())
          str[0] = toupper((unsigned char)str[0]);
  
  //    while(++it != str.end())
  //    {
  //      *it = tolower((unsigned char)*it);
  //    }
      return str;
    }
  
   private:
  
    /**
     * File streams
     */
    std::ofstream f_types_;
    std::ofstream f_helpers_;
    std::ofstream f_service_;
  
    std::string package_dir_;
    /**
     * Generate protocol-independent template? Or Binary inline code?
     */
    bool binary_inline_;
  
    /**
     * Generate a REST handler class
     */
    bool rest_;
  
    /**
     * Generate stubs for a PHP server
     */
    bool phps_;
  
    /**
     * Whether to use OOP base class TBase
     */
    bool oop_;
  
    /**
     * Whether to generate validator code
     */
    bool validate_;
  
    /**
     * Global namespace for PHP 5.3
     */
    std::string nsglobal_;
  };
  
  
  bool t_php_generator::is_valid_namespace(const std::string& sub_namespace) {
    return sub_namespace == "path";
  }
  
  
  /**
   * Prepares for file generation by opening up the necessary file output
   * streams.
   *
   * @param tprogram The program to generate
   */
  void t_php_generator::init_generator() {
    // Make output directory
    MKDIR(get_out_dir().c_str());
  
    // Create Real directory Namespaces
    vector<string> NSx = split(php_namespace_suffix(get_program()), '\\');
    package_dir_ = get_out_dir();
  
    for (size_t i = 0; i < NSx.size(); ++i) {
  	package_dir_ = package_dir_ + "/" + NSx[i] + "/";
  	MKDIR(package_dir_.c_str());
    }
  
    // Make output file
    string f_types_name = package_dir_+"Types.php";
    f_types_.open(f_types_name.c_str());
  
    // Print header
    f_types_ <<
      "<?php" << endl;
      f_types_ << "namespace " << php_namespace_suffix(get_program()) << ";" << endl << endl;
    f_types_ << autogen_comment() << php_includes();
  
    f_types_ << endl;
  }
  
  /**
   * Prints standard php includes
   */
  string t_php_generator::php_includes() {
    string TBase = "use Thrift\\Base\\TBase;\n";
    string TType = "use Thrift\\Type\\TType;\n";
    string TMessageType = "use Thrift\\Type\\TMessageType;\n";
    string TException = "use Thrift\\Exception\\TException;\n";
    string TProtocolException = "use Thrift\\Exception\\TProtocolException;\n";
    string TProtocol = "use Thrift\\Protocol\\TProtocol;\n";
    string TBinaryProtocolAccelerated = "use Thrift\\Protocol\\TBinaryProtocolAccelerated;\n";
    string TApplicationException = "use Thrift\\Exception\\TApplicationException;\n\n";
  
    return TBase + TType + TMessageType + TException + TProtocolException + TProtocol + TBinaryProtocolAccelerated + TApplicationException;
  }
  
  /**
   * Close up (or down) some filez.
   */
  void t_php_generator::close_generator() {
    // Close types file
      f_types_ << endl;
    f_types_.close();
  }
  
  /**
   * Generates a typedef. This is not done in PHP, types are all implicit.
   *
   * @param ttypedef The type definition
   */
  void t_php_generator::generate_typedef(t_typedef* ttypedef) {
    (void) ttypedef;
  }
  
  /**
   * Generates code for an enumerated type. Since define is expensive to lookup
   * in PHP, we use a global array for this.
   *
   * @param tenum The enumeration
   */
  void t_php_generator::generate_enum(t_enum* tenum) {
    vector<t_enum_value*> constants = tenum->get_constants();
    vector<t_enum_value*>::iterator c_iter;
  
    // We're also doing it this way to see how it performs. It's more legible
    // code but you can't do things like an 'extract' on it, which is a bit of
    // a downer.
    generate_php_doc(f_types_, tenum);
    f_types_ <<
      "final class " << tenum->get_name() << " {" << endl;
    indent_up();
  
    for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
      int value = (*c_iter)->get_value();
      generate_php_doc(f_types_, *c_iter);
      indent(f_types_) <<
        "const " << (*c_iter)->get_name() << " = " << value << ";" << endl;
    }
  
    indent(f_types_) <<
      "static public $__names = array(" << endl;
    for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
      int value = (*c_iter)->get_value();
      indent(f_types_) <<
        "  " << value << " => '" << (*c_iter)->get_name() << "'," << endl;
    }
    indent(f_types_) <<
      ");" << endl;
  
    indent_down();
    f_types_ << "}" << endl << endl;
  }
  
  /**
   * Generate constant class
   *
   * Override the one from t_generator
   */
  void t_php_generator::generate_consts(vector<t_const*> consts) {
      vector<t_const*>::iterator c_iter;
  
      // Create class only if needed
      if(consts.size() > 0)
      {
          f_types_ << "final class Constant extends \\Thrift\\Type\\TConstant {" << endl;
          indent_up();
  
          // Create static property
          for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
              string name = (*c_iter)->get_name();
  
              indent(f_types_) << "static protected $" << name << ";" << endl;
          }
  
          // Create init function
          for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
              string name = (*c_iter)->get_name();
  
              f_types_ << endl;
  
              indent(f_types_) << "static protected function init_" << name << "() {" << endl;
              indent_up();
  
              indent(f_types_) << "return ";
              generate_const(*c_iter);
              f_types_ << ";" << endl;
  
              indent_down();
              indent(f_types_) << "}" << endl;
          }
  
          indent_down();
          f_types_ << "}" << endl << endl;
      }
  }
  
  /**
   * Generate a constant value
   */
  void t_php_generator::generate_const(t_const* tconst) {
    t_type* type = tconst->get_type();
    t_const_value* value = tconst->get_value();
  
    generate_php_doc(f_types_, tconst);
    f_types_ << render_const_value(type, value);
  }
  
  /**
   * Prints the value of a constant with the given type. Note that type checking
   * is NOT performed in this function as it is always run beforehand using the
   * validate_types method in main.cc
   */
  string t_php_generator::render_const_value(t_type* type, t_const_value* value) {
    std::ostringstream out;
    type = get_true_type(type);
    if (type->is_base_type()) {
      t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
      switch (tbase) {
      case t_base_type::TYPE_STRING:
        out << '"' << get_escaped_string(value) << '"';
        break;
      case t_base_type::TYPE_BOOL:
        out << (value->get_integer() > 0 ? "true" : "false");
        break;
      case t_base_type::TYPE_BYTE:
      case t_base_type::TYPE_I16:
      case t_base_type::TYPE_I32:
      case t_base_type::TYPE_I64:
        out << value->get_integer();
        break;
      case t_base_type::TYPE_DOUBLE:
        if (value->get_type() == t_const_value::CV_INTEGER) {
          out << value->get_integer();
        } else {
          out << value->get_double();
        }
        break;
      default:
        throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
      }
    } else if (type->is_enum()) {
      indent(out) << value->get_integer();
    } else if (type->is_struct() || type->is_xception()) {
      out << "new " << php_namespace(type->get_program()) << type->get_name() << "(array(" << endl;
      indent_up();
      const vector<t_field*>& fields = ((t_struct*)type)->get_members();
      vector<t_field*>::const_iterator f_iter;
      const map<t_const_value*, t_const_value*>& val = value->get_map();
      map<t_const_value*, t_const_value*>::const_iterator v_iter;
      for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
        t_type* field_type = NULL;
        for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
          if ((*f_iter)->get_name() == v_iter->first->get_string()) {
            field_type = (*f_iter)->get_type();
          }
        }
        if (field_type == NULL) {
          throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
        }
        out << indent();
        out << render_const_value(g_type_string, v_iter->first);
        out << " => ";
        out << render_const_value(field_type, v_iter->second);
        out << "," << endl;
      }
      indent_down();
      indent(out) << "))";
    } else if (type->is_map()) {
      t_type* ktype = ((t_map*)type)->get_key_type();
      t_type* vtype = ((t_map*)type)->get_val_type();
      out << "array(" << endl;
      indent_up();
      const map<t_const_value*, t_const_value*>& val = value->get_map();
      map<t_const_value*, t_const_value*>::const_iterator v_iter;
      for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
        out << indent();
        out << render_const_value(ktype, v_iter->first);
        out << " => ";
        out << render_const_value(vtype, v_iter->second);
        out << "," << endl;
      }
      indent_down();
      indent(out) << ")";
    } else if (type->is_list() || type->is_set()) {
      t_type* etype;
      if (type->is_list()) {
        etype = ((t_list*)type)->get_elem_type();
      } else {
        etype = ((t_set*)type)->get_elem_type();
      }
      out << "array(" << endl;
      indent_up();
      const vector<t_const_value*>& val = value->get_list();
      vector<t_const_value*>::const_iterator v_iter;
      for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
        out << indent();
        out << render_const_value(etype, *v_iter);
        if (type->is_set()) {
          out << " => true";
        }
        out << "," << endl;
      }
      indent_down();
      indent(out) << ")";
    }
    return out.str();
  }
  
  /**
   * Make a struct
   */
  void t_php_generator::generate_struct(t_struct* tstruct) {
    generate_php_struct(tstruct, false);
  }
  
  /**
   * Generates a struct definition for a thrift exception. Basically the same
   * as a struct but extends the Exception class.
   *
   * @param txception The struct definition
   */
  void t_php_generator::generate_xception(t_struct* txception) {
    generate_php_struct(txception, true);
  }
  
  /**
   * Structs can be normal or exceptions.
   */
  void t_php_generator::generate_php_struct(t_struct* tstruct,
                                            bool is_exception) {
    generate_php_struct_definition(f_types_, tstruct, is_exception);
  }
  
  void t_php_generator::generate_php_type_spec(ofstream& out,
                                               t_type* t) {
    t = get_true_type(t);
    indent(out) << "'type' => " << type_to_enum(t) << "," << endl;
  
    if (t->is_base_type() || t->is_enum()) {
      // Noop, type is all we need
    } else if (t->is_struct() || t->is_xception()) {
      indent(out) << "'class' => '" << php_namespace(t->get_program()) << t->get_name() <<"'," << endl;
    } else if (t->is_map()) {
      t_type* ktype = get_true_type(((t_map*)t)->get_key_type());
      t_type* vtype = get_true_type(((t_map*)t)->get_val_type());
      indent(out) << "'ktype' => " << type_to_enum(ktype) << "," << endl;
      indent(out) << "'vtype' => " << type_to_enum(vtype) << "," << endl;
      indent(out) << "'key' => array(" << endl;
      indent_up();
      generate_php_type_spec(out, ktype);
      indent_down();
      indent(out) << ")," << endl;
      indent(out) << "'val' => array(" << endl;
      indent_up();
      generate_php_type_spec(out, vtype);
      indent(out) << ")," << endl;
      indent_down();
    } else if (t->is_list() || t->is_set()) {
      t_type* etype;
      if (t->is_list()) {
        etype = get_true_type(((t_list*)t)->get_elem_type());
      } else {
        etype = get_true_type(((t_set*)t)->get_elem_type());
      }
      indent(out) << "'etype' => " << type_to_enum(etype) <<"," << endl;
      indent(out) << "'elem' => array(" << endl;
      indent_up();
      generate_php_type_spec(out, etype);
      indent(out) << ")," << endl;
      indent_down();
    } else {
      throw "compiler error: no type for php struct spec field";
    }
  
  }
  
  /**
   * Generates the struct specification structure, which fully qualifies enough
   * type information to generalize serialization routines.
   */
  void t_php_generator::generate_php_struct_spec(ofstream& out,
                                                 t_struct* tstruct) {
    indent(out) << "if (!isset(self::$_TSPEC)) {" << endl;
    indent_up();
  
    indent(out) << "self::$_TSPEC = array(" << endl;
    indent_up();
  
    const vector<t_field*>& members = tstruct->get_members();
    vector<t_field*>::const_iterator m_iter;
    for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
      t_type* t = get_true_type((*m_iter)->get_type());
      indent(out) << (*m_iter)->get_key() << " => array(" << endl;
      indent_up();
      out <<
        indent() << "'var' => '" << (*m_iter)->get_name() << "'," << endl;
      generate_php_type_spec(out, t);
      indent(out) << ")," << endl;
      indent_down();
    }
  
    indent_down();
    indent(out) << "  );" << endl;
    indent_down();
    indent(out) << "}" << endl;
  }
  
  /**
   * Generates a struct definition for a thrift data type. This is nothing in PHP
   * where the objects are all just associative arrays (unless of course we
   * decide to start using objects for them...)
   *
   * @param tstruct The struct definition
   */
  void t_php_generator::generate_php_struct_definition(ofstream& out,
                                                       t_struct* tstruct,
                                                       bool is_exception) {
    const vector<t_field*>& members = tstruct->get_members();
    vector<t_field*>::const_iterator m_iter;
  
    generate_php_doc(out, tstruct);
    out <<
      "class " << php_namespace_declaration(tstruct);
    if (is_exception) {
      out << " extends " << "TException";
    } else if (oop_) {
      out << " extends " << "TBase";
    }
    out <<
      " {" << endl;
    indent_up();
  
    indent(out) << "static $_TSPEC;" << endl << endl;
  
    for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
      string dval = "null";
      t_type* t = get_true_type((*m_iter)->get_type());
      if ((*m_iter)->get_value() != NULL && !(t->is_struct() || t->is_xception())) {
        dval = render_const_value((*m_iter)->get_type(), (*m_iter)->get_value());
      }
      generate_php_doc(out, *m_iter);
      indent(out) <<
        "public $" << (*m_iter)->get_name() << " = " << dval << ";" << endl;
    }
  
    out << endl;
  
    // Generate constructor from array
    string param = (members.size() > 0) ? "$vals=null" : "";
    out <<
      indent() << "public function __construct(" << param << ") {" << endl;
    indent_up();
  
    generate_php_struct_spec(out, tstruct);
  
    if (members.size() > 0) {
      for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
        t_type* t = get_true_type((*m_iter)->get_type());
        if ((*m_iter)->get_value() != NULL && (t->is_struct() || t->is_xception())) {
          indent(out) << "$this->" << (*m_iter)->get_name() << " = " << render_const_value(t, (*m_iter)->get_value()) << ";" << endl;
        }
      }
      out <<
        indent() << "if (is_array($vals)) {" << endl;
      indent_up();
      if (oop_) {
        out << indent() << "parent::__construct(self::$_TSPEC, $vals);" << endl;
      } else {
        for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
          out <<
            indent() << "if (isset($vals['" << (*m_iter)->get_name() << "'])) {" << endl <<
            indent() << "  $this->" << (*m_iter)->get_name() << " = $vals['" << (*m_iter)->get_name() << "'];" << endl <<
            indent() << "}" << endl;
        }
      }
      indent_down();
      out <<
        indent() << "}" << endl;
    }
    scope_down(out);
    out << endl;
  
    out <<
      indent() << "public function getName() {" << endl <<
      indent() << "  return '" << tstruct->get_name() << "';" << endl <<
      indent() << "}" << endl <<
      endl;
  
    generate_php_struct_reader(out, tstruct);
    generate_php_struct_writer(out, tstruct);
    if (needs_php_read_validator(tstruct)) {
      generate_php_struct_read_validator(out, tstruct);
    }
    if (needs_php_write_validator(tstruct)) {
      generate_php_struct_write_validator(out, tstruct);
    }
  
    indent_down();
    out <<
      indent() << "}" << endl <<
      endl;
  }
  
  /**
   * Generates the read() method for a struct
   */
  void t_php_generator::generate_php_struct_reader(ofstream& out,
                                                   t_struct* tstruct) {
    const vector<t_field*>& fields = tstruct->get_members();
    vector<t_field*>::const_iterator f_iter;
  
    indent(out) <<
      "public function read($input)" << endl;
    scope_up(out);
  
    if (oop_) {
      if (needs_php_read_validator(tstruct)) {
        indent(out) << "$tmp = $this->_read('" << tstruct->get_name() << "', self::$_TSPEC, $input);" << endl;
        indent(out) << "$this->_validateForRead();" << endl;
        indent(out) << "return $tmp;" << endl;
      } else {
        indent(out) << "return $this->_read('" << tstruct->get_name() << "', self::$_TSPEC, $input);" << endl;
      }
      scope_down(out);
      out << endl;
      return;
    }
  
    out <<
      indent() << "$xfer = 0;" << endl <<
      indent() << "$fname = null;" << endl <<
      indent() << "$ftype = 0;" << endl <<
      indent() << "$fid = 0;" << endl;
  
    // Declare stack tmp variables
    if (!binary_inline_) {
      indent(out) <<
        "$xfer += $input->readStructBegin($fname);" << endl;
    }
  
    // Loop over reading in fields
    indent(out) <<
      "while (true)" << endl;
  
      scope_up(out);
  
      // Read beginning field marker
      if (binary_inline_) {
        t_field fftype(g_type_byte, "ftype");
        t_field ffid(g_type_i16, "fid");
        generate_deserialize_field(out, &fftype);
        out <<
          indent() << "if ($ftype == " << "TType::STOP) {" << endl <<
          indent() << "  break;" << endl <<
          indent() << "}" << endl;
        generate_deserialize_field(out, &ffid);
      } else {
        indent(out) <<
          "$xfer += $input->readFieldBegin($fname, $ftype, $fid);" << endl;
        // Check for field STOP marker and break
        indent(out) <<
          "if ($ftype == " << "TType::STOP) {" << endl;
        indent_up();
        indent(out) <<
          "break;" << endl;
        indent_down();
        indent(out) <<
          "}" << endl;
      }
  
      // Switch statement on the field we are reading
      indent(out) <<
        "switch ($fid)" << endl;
  
        scope_up(out);
  
        // Generate deserialization code for known cases
        for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
          indent(out) <<
            "case " << (*f_iter)->get_key() << ":" << endl;
          indent_up();
          indent(out) << "if ($ftype == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
          indent_up();
          generate_deserialize_field(out, *f_iter, "this->");
          indent_down();
          out <<
            indent() << "} else {" << endl;
          if (binary_inline_) {
            indent(out) <<  "  $xfer += " << "TProtocol::skipBinary($input, $ftype);" << endl;
          } else {
            indent(out) <<  "  $xfer += $input->skip($ftype);" << endl;
          }
          out <<
            indent() << "}" << endl <<
            indent() << "break;" << endl;
          indent_down();
        }
  
        // In the default case we skip the field
        indent(out) <<  "default:" << endl;
        if (binary_inline_) {
          indent(out) <<  "  $xfer += " << "TProtocol::skipBinary($input, $ftype);" << endl;
        } else {
          indent(out) <<  "  $xfer += $input->skip($ftype);" << endl;
        }
        indent(out) <<  "  break;" << endl;
  
        scope_down(out);
  
      if (!binary_inline_) {
        // Read field end marker
        indent(out) <<
          "$xfer += $input->readFieldEnd();" << endl;
      }
  
      scope_down(out);
  
    if (!binary_inline_) {
      indent(out) <<
        "$xfer += $input->readStructEnd();" << endl;
    }
  
    if (needs_php_read_validator(tstruct)) {
      indent(out) <<
        "$this->_validateForRead();" << endl;
    }
  
    indent(out) <<
      "return $xfer;" << endl;
  
    indent_down();
    out <<
      indent() << "}" << endl <<
      endl;
  }
  
  /**
   * Generates the write() method for a struct
   */
  void t_php_generator::generate_php_struct_writer(ofstream& out,
                                                   t_struct* tstruct) {
    string name = tstruct->get_name();
    const vector<t_field*>& fields = tstruct->get_sorted_members();
    vector<t_field*>::const_iterator f_iter;
  
    if (binary_inline_) {
      indent(out) <<
        "public function write(&$output) {" << endl;
    } else {
      indent(out) <<
        "public function write($output) {" << endl;
    }
    indent_up();
  
    if (needs_php_write_validator(tstruct)) {
      indent(out) << "$this->_validateForWrite();" << endl;
    }
  
    if (oop_) {
      indent(out) << "return $this->_write('" << tstruct->get_name() << "', self::$_TSPEC, $output);" << endl;
      scope_down(out);
      out << endl;
      return;
    }
  
    indent(out) <<
      "$xfer = 0;" << endl;
  
    if (!binary_inline_) {
      indent(out) <<
        "$xfer += $output->writeStructBegin('" << name << "');" << endl;
    }
  
    for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
      out <<
        indent() << "if ($this->" << (*f_iter)->get_name() << " !== null) {" << endl;
      indent_up();
  
      t_type* type = get_true_type((*f_iter)->get_type());
      string expect;
      if (type->is_container()) {
        expect = "array";
      } else if (type->is_struct()) {
        expect = "object";
      }
      if (!expect.empty()) {
        out <<
          indent() << "if (!is_" << expect << "($this->" << (*f_iter)->get_name() << ")) {" << endl;
        indent_up();
        out <<
          indent() << "throw new " << "TProtocolException('Bad type in structure.', " << "TProtocolException::INVALID_DATA);" << endl;
        scope_down(out);
      }
  
      // Write field header
      if (binary_inline_) {
        out <<
          indent() << "$output .= pack('c', " << type_to_enum((*f_iter)->get_type()) << ");" << endl <<
          indent() << "$output .= pack('n', " << (*f_iter)->get_key() << ");" << endl;
      } else {
        indent(out) <<
          "$xfer += $output->writeFieldBegin(" <<
          "'" << (*f_iter)->get_name() << "', " <<
          type_to_enum((*f_iter)->get_type()) << ", " <<
          (*f_iter)->get_key() << ");" << endl;
      }
  
      // Write field contents
      generate_serialize_field(out, *f_iter, "this->");
  
      // Write field closer
      if (!binary_inline_) {
        indent(out) <<
          "$xfer += $output->writeFieldEnd();" << endl;
      }
  
      indent_down();
      indent(out) <<
        "}" << endl;
    }
  
    if (binary_inline_) {
      out <<
        indent() << "$output .= pack('c', " << "TType::STOP);" << endl;
    } else {
      out <<
        indent() << "$xfer += $output->writeFieldStop();" << endl <<
        indent() << "$xfer += $output->writeStructEnd();" << endl;
    }
  
    out <<
      indent() << "return $xfer;" << endl;
  
    indent_down();
    out << indent() << "}" << endl << endl;
  }
  
  void t_php_generator::generate_php_struct_read_validator(ofstream& out,
                                                            t_struct* tstruct) {
    generate_php_struct_required_validator(out, tstruct, "_validateForRead", false);
  }
  
  void t_php_generator::generate_php_struct_write_validator(ofstream& out,
                                                            t_struct* tstruct) {
    generate_php_struct_required_validator(out, tstruct, "_validateForWrite", true);
  }
  
  void t_php_generator::generate_php_struct_required_validator(ofstream& out,
                                                               t_struct* tstruct,
                                                               std::string method_name,
                                                               bool write_mode) {
    indent(out) <<
      "private function " << method_name << "() {" << endl;
    indent_up();
  
    const vector<t_field*>& fields = tstruct->get_members();
  
    if (fields.size() > 0) {
      vector<t_field*>::const_iterator f_iter;
  
      for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
        t_field* field = (*f_iter);
        if (field->get_req() == t_field::T_REQUIRED ||
            (field->get_req() == t_field::T_OPT_IN_REQ_OUT && write_mode)) {
          indent(out) <<
            "if ($this->" << field->get_name() << " === null) {" << endl;
          indent_up();
          indent(out) <<
            "throw new TProtocolException('Required field " <<
            tstruct->get_name() << "." << field->get_name() << " is unset!');" << endl;
          indent_down();
          indent(out) <<
            "}" << endl;
        }
      }
    }
  
    indent_down();
    indent(out) << "}" << endl << endl;
  }
  
  int t_php_generator::get_php_num_required_fields(const vector<t_field*>& fields,
                                                   bool write_mode) {
    int num_req = 0;
  
    if (fields.size() > 0) {
      vector<t_field*>::const_iterator f_iter;
      for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
        if ((*f_iter)->get_req() == t_field::T_REQUIRED ||
            ((*f_iter)->get_req() == t_field::T_OPT_IN_REQ_OUT && write_mode)) {
          ++num_req;
        }
      }
    }
    return num_req;
  }
  
  bool t_php_generator::needs_php_write_validator(t_struct* tstruct) {
    return (validate_ &&
            !tstruct->is_union() &&
            get_php_num_required_fields(tstruct->get_members(), true) > 0);
  }
  
  bool t_php_generator::needs_php_read_validator(t_struct* tstruct) {
    return (validate_ &&
            (get_php_num_required_fields(tstruct->get_members(), false) > 0));
  }
  
  /**
   * Generates a thrift service.
   *
   * @param tservice The service definition
   */
  void t_php_generator::generate_service(t_service* tservice) {
    string f_service_name = package_dir_+service_name_+".php";
    f_service_.open(f_service_name.c_str());
  
    f_service_ << "<?php" << endl;
    f_service_ << "namespace " << php_namespace_suffix(tservice->get_program()) << ";" << endl;
    f_service_ << autogen_comment() <<
      php_includes();
  
    f_service_ <<
      endl;
  
    // Generate the three main parts of the service (well, two for now in PHP)
    generate_service_interface(tservice);
    if (rest_) {
      generate_service_rest(tservice);
    }
    generate_service_client(tservice);
    generate_service_helpers(tservice);
    if (phps_) {
      generate_service_processor(tservice);
    }
  
    // Close service file
    f_service_ << endl;
    f_service_.close();
  }
  
  /**
   * Generates a service server definition.
   *
   * @param tservice The service to generate a server for.
   */
  void t_php_generator::generate_service_processor(t_service* tservice) {
    // Generate the dispatch methods
    vector<t_function*> functions = tservice->get_functions();
    vector<t_function*>::iterator f_iter;
  
    string extends = "";
    string extends_processor = "";
    if (tservice->get_extends() != NULL) {
      extends = tservice->get_extends()->get_name();
      extends_processor = " extends " + php_namespace(tservice->get_extends()->get_program()) + extends + "Processor";
    }
  
    // Generate the header portion
    f_service_ <<
      "class " << service_name_ << "Processor" << extends_processor << " {" << endl;
    indent_up();
  
    if (extends.empty()) {
      f_service_ <<
        indent() << "protected $handler_ = null;" << endl;
    }
  
    f_service_ <<
      indent() << "public function __construct($handler) {" << endl;
    if (extends.empty()) {
      f_service_ <<
        indent() << "  $this->handler_ = $handler;" << endl;
    } else {
      f_service_ <<
        indent() << "  parent::__construct($handler);" << endl;
    }
    f_service_ <<
      indent() << "}" << endl <<
      endl;
  
    // Generate the server implementation
    indent(f_service_) <<
      "public function process($input, $output) {" << endl;
    indent_up();
  
    f_service_ <<
      indent() << "$rseqid = 0;" << endl <<
      indent() << "$fname = null;" << endl <<
      indent() << "$mtype = 0;" << endl <<
      endl;
  
    if (binary_inline_) {
      t_field ffname(g_type_string, "fname");
      t_field fmtype(g_type_byte, "mtype");
      t_field fseqid(g_type_i32, "rseqid");
      generate_deserialize_field(f_service_, &ffname, "", true);
      generate_deserialize_field(f_service_, &fmtype, "", true);
      generate_deserialize_field(f_service_, &fseqid, "", true);
    } else {
      f_service_ <<
        indent() << "$input->readMessageBegin($fname, $mtype, $rseqid);" << endl;
    }
  
    // HOT: check for method implementation
    f_service_ <<
      indent() << "$methodname = 'process_'.$fname;" << endl <<
      indent() << "if (!method_exists($this, $methodname)) {" << endl;
    if (binary_inline_) {
      f_service_ <<
        indent() << "  throw new \\Exception('Function '.$fname.' not implemented.');" << endl;
    } else {
      f_service_ <<
        indent() << "  $input->skip(" << "TType::STRUCT);" << endl <<
        indent() << "  $input->readMessageEnd();" << endl <<
        indent() << "  $x = new " << "TApplicationException('Function '.$fname.' not implemented.', " << "TApplicationException::UNKNOWN_METHOD);" << endl <<
        indent() << "  $output->writeMessageBegin($fname, " << "TMessageType::EXCEPTION, $rseqid);" << endl <<
        indent() << "  $x->write($output);" << endl <<
        indent() << "  $output->writeMessageEnd();" << endl <<
        indent() << "  $output->getTransport()->flush();" << endl <<
        indent() << "  return;" << endl;
    }
    f_service_ <<
      indent() << "}" << endl <<
      indent() << "$this->$methodname($rseqid, $input, $output);" << endl <<
      indent() << "return true;" << endl;
    indent_down();
    f_service_ <<
      indent() << "}" << endl <<
      endl;
  
    // Generate the process subfunctions
    for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
      generate_process_function(tservice, *f_iter);
    }
  
    indent_down();
    f_service_ << "}" << endl;
  }
  
  /**
   * Generates a process function definition.
   *
   * @param tfunction The function to write a dispatcher for
   */
  void t_php_generator::generate_process_function(t_service* tservice,
                                                  t_function* tfunction) {
    // Open function
    indent(f_service_) <<
      "protected function process_" << tfunction->get_name() <<
      "($seqid, $input, $output) {" << endl;
    indent_up();
  
    string argsname = php_namespace(tservice->get_program()) + service_name_ + "_" + tfunction->get_name() + "_args";
    string resultname = php_namespace(tservice->get_program()) + service_name_ + "_" + tfunction->get_name() + "_result";
  
    f_service_ <<
      indent() << "$args = new " << argsname << "();" << endl <<
      indent() << "$args->read($input);" << endl;
    if (!binary_inline_) {
      f_service_ <<
        indent() << "$input->readMessageEnd();" << endl;
    }
  
    t_struct* xs = tfunction->get_xceptions();
    const std::vector<t_field*>& xceptions = xs->get_members();
    vector<t_field*>::const_iterator x_iter;
  
    // Declare result for non oneway function
    if (!tfunction->is_oneway()) {
      f_service_ <<
        indent() << "$result = new " << resultname << "();" << endl;
    }
  
    // Try block for a function with exceptions
    if (xceptions.size() > 0) {
      f_service_ <<
        indent() << "try {" << endl;
      indent_up();
    }
  
    // Generate the function call
    t_struct* arg_struct = tfunction->get_arglist();
    const std::vector<t_field*>& fields = arg_struct->get_members();
    vector<t_field*>::const_iterator f_iter;
  
    f_service_ << indent();
    if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()) {
      f_service_ << "$result->success = ";
    }
    f_service_ <<
      "$this->handler_->" << tfunction->get_name() << "(";
    bool first = true;
    for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
      if (first) {
        first = false;
      } else {
        f_service_ << ", ";
      }
      f_service_ << "$args->" << (*f_iter)->get_name();
    }
    f_service_ << ");" << endl;
  
    if (!tfunction->is_oneway() && xceptions.size() > 0) {
      indent_down();
      for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
        f_service_ <<
          indent() << "} catch (" << php_namespace(get_true_type((*x_iter)->get_type())->get_program()) << (*x_iter)->get_type()->get_name() << " $" << (*x_iter)->get_name() << ") {" << endl;
        if (!tfunction->is_oneway()) {
          indent_up();
          f_service_ <<
            indent() << "$result->" << (*x_iter)->get_name() << " = $" << (*x_iter)->get_name() << ";" << endl;
          indent_down();
          f_service_ << indent();
        }
      }
      f_service_ << "}" << endl;
    }
  
    // Shortcut out here for oneway functions
    if (tfunction->is_oneway()) {
      f_service_ <<
        indent() << "return;" << endl;
      indent_down();
      f_service_ <<
        indent() << "}" << endl;
      return;
    }
  
    f_service_ <<
      indent() << "$bin_accel = ($output instanceof " << "TBinaryProtocolAccelerated) && function_exists('thrift_protocol_write_binary');" << endl;
  
    f_service_ <<
      indent() << "if ($bin_accel)" << endl;
    scope_up(f_service_);
  
    f_service_ <<
      indent() << "thrift_protocol_write_binary($output, '" << tfunction->get_name() << "', " << "TMessageType::REPLY, $result, $seqid, $output->isStrictWrite());" << endl;
  
    scope_down(f_service_);
    f_service_ <<
      indent() << "else" << endl;
    scope_up(f_service_);
  
    // Serialize the request header
    if (binary_inline_) {
      f_service_ <<
        indent() << "$buff = pack('N', (0x80010000 | " << "TMessageType::REPLY)); " << endl <<
        indent() << "$buff .= pack('N', strlen('" << tfunction->get_name() << "'));" << endl <<
        indent() << "$buff .= '" << tfunction->get_name() << "';" << endl <<
        indent() << "$buff .= pack('N', $seqid);" << endl <<
        indent() << "$result->write($buff);" << endl <<
        indent() << "$output->write($buff);" << endl <<
        indent() << "$output->flush();" << endl;
    } else {
      f_service_ <<
        indent() << "$output->writeMessageBegin('" << tfunction->get_name() << "', " << "TMessageType::REPLY, $seqid);" << endl <<
        indent() << "$result->write($output);" << endl <<
        indent() << "$output->writeMessageEnd();" << endl <<
        indent() << "$output->getTransport()->flush();" << endl;
    }
  
    scope_down(f_service_);
  
    // Close function
    indent_down();
    f_service_ <<
      indent() << "}" << endl;
  }
  
  /**
   * Generates helper functions for a service.
   *
   * @param tservice The service to generate a header definition for
   */
  void t_php_generator::generate_service_helpers(t_service* tservice) {
    vector<t_function*> functions = tservice->get_functions();
    vector<t_function*>::iterator f_iter;
  
    f_service_ <<
      "// HELPER FUNCTIONS AND STRUCTURES" << endl << endl;
  
    for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
      t_struct* ts = (*f_iter)->get_arglist();
      string name = ts->get_name();
      ts->set_name(service_name_ + "_" + name);
      generate_php_struct_definition(f_service_, ts, false);
      generate_php_function_helpers(*f_iter);
      ts->set_name(name);
    }
  }
  
  /**
   * Generates a struct and helpers for a function.
   *
   * @param tfunction The function
   */
  void t_php_generator::generate_php_function_helpers(t_function* tfunction) {
    if (!tfunction->is_oneway()) {
      t_struct result(program_, service_name_ + "_" + tfunction->get_name() + "_result");
      t_field success(tfunction->get_returntype(), "success", 0);
      if (!tfunction->get_returntype()->is_void()) {
        result.append(&success);
      }
  
      t_struct* xs = tfunction->get_xceptions();
      const vector<t_field*>& fields = xs->get_members();
      vector<t_field*>::const_iterator f_iter;
      for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
        result.append(*f_iter);
      }
  
      generate_php_struct_definition(f_service_, &result, false);
    }
  }
  
  /**
   * Generates a service interface definition.
   *
   * @param tservice The service to generate a header definition for
   */
  void t_php_generator::generate_service_interface(t_service* tservice) {
    string extends = "";
    string extends_if = "";
    if (tservice->get_extends() != NULL) {
      extends = " extends " + php_namespace(tservice->get_extends()->get_program()) + tservice->get_extends()->get_name();
      extends_if = " extends " + php_namespace(tservice->get_extends()->get_program()) + tservice->get_extends()->get_name() + "If";
    }
    generate_php_doc(f_service_, tservice);
    f_service_ <<
      "interface " << php_namespace_declaration(tservice) << "If" << extends_if << " {" << endl;
    indent_up();
    vector<t_function*> functions = tservice->get_functions();
    vector<t_function*>::iterator f_iter;
    for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
      generate_php_doc(f_service_, *f_iter);
      indent(f_service_) <<
        "public function " << function_signature(*f_iter) << ";" << endl;
    }
    indent_down();
    f_service_ <<
      "}" << endl << endl;
  }
  
  /**
   * Generates a REST interface
   */
  void t_php_generator::generate_service_rest(t_service* tservice) {
    string extends = "";
    string extends_if = "";
    if (tservice->get_extends() != NULL) {
      extends = " extends " + php_namespace(tservice->get_extends()->get_program()) + tservice->get_extends()->get_name();
      extends_if = " extends " + php_namespace(tservice->get_extends()->get_program()) + tservice->get_extends()->get_name() + "Rest";
    }
    f_service_ <<
      "class " << service_name_ << "Rest" << extends_if << " {" << endl;
    indent_up();
  
    if (extends.empty()) {
      f_service_ <<
        indent() << "protected $impl_;" << endl <<
        endl;
    }
  
    f_service_ <<
      indent() << "public function __construct($impl) {" << endl <<
      indent() << "  $this->impl_ = $impl;" << endl <<
      indent() << "}" << endl <<
      endl;
  
    vector<t_function*> functions = tservice->get_functions();
    vector<t_function*>::iterator f_iter;
    for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
      indent(f_service_) <<
        "public function " << (*f_iter)->get_name() << "($request) {" << endl;
      indent_up();
      const vector<t_field*>& args = (*f_iter)->get_arglist()->get_members();
      vector<t_field*>::const_iterator a_iter;
      for (a_iter = args.begin(); a_iter != args.end(); ++a_iter) {
        t_type* atype = get_true_type((*a_iter)->get_type());
        string cast = type_to_cast(atype);
        string req = "$request['" + (*a_iter)->get_name() + "']";
        if (atype->is_bool()) {
          f_service_ <<
            indent() << "$" << (*a_iter)->get_name() << " = " << cast << "(!empty(" << req << ") && (" << req << " !== 'false'));" << endl;
        } else {
          f_service_ <<
            indent() << "$" << (*a_iter)->get_name() << " = isset(" << req << ") ? " << cast << req << " : null;" << endl;
        }
        if (atype->is_string() &&
            ((t_base_type*)atype)->is_string_list()) {
          f_service_ <<
            indent() << "$" << (*a_iter)->get_name() << " = explode(',', $" << (*a_iter)->get_name() << ");" << endl;
        } else if (atype->is_map() || atype->is_list()) {
          f_service_ <<
            indent() << "$" << (*a_iter)->get_name() << " = json_decode($" << (*a_iter)->get_name() << ", true);" << endl;
        } else if (atype->is_set()) {
          f_service_ <<
            indent() << "$" << (*a_iter)->get_name() << " = array_fill_keys(json_decode($" << (*a_iter)->get_name() << ", true), 1);" << endl;
        } else if (atype->is_struct() || atype->is_xception()) {
          f_service_ <<
            indent() << "if ($" << (*a_iter)->get_name() << " !== null) {" << endl <<
            indent() << "  $" << (*a_iter)->get_name() << " = new " << php_namespace(atype->get_program()) << atype->get_name() << "(json_decode($" << (*a_iter)->get_name() << ", true));" << endl <<
            indent() << "}" << endl;
        }
      }
      f_service_ <<
        indent() << "return $this->impl_->" << (*f_iter)->get_name() << "(" << argument_list((*f_iter)->get_arglist(), false) << ");" << endl;
      indent_down();
      indent(f_service_) <<
        "}" << endl <<
        endl;
    }
    indent_down();
    f_service_ <<
      "}" << endl << endl;
  }
  
  /**
   * Generates a service client definition.
   *
   * @param tservice The service to generate a server for.
   */
  void t_php_generator::generate_service_client(t_service* tservice) {
    string extends = "";
    string extends_client = "";
    if (tservice->get_extends() != NULL) {
      extends = tservice->get_extends()->get_name();
      extends_client = " extends " + php_namespace(tservice->get_extends()->get_program()) + extends + "Client";
    }
  
    f_service_ <<
      "class " << php_namespace_declaration(tservice) << "Client" << extends_client << " implements " <<  php_namespace(tservice->get_program()) << service_name_ << "If {" << endl;
    indent_up();
  
    // Private members
    if (extends.empty()) {
      f_service_ <<
        indent() << "protected $input_ = null;" << endl <<
        indent() << "protected $output_ = null;" << endl <<
        endl;
      f_service_ <<
        indent() << "protected $seqid_ = 0;" << endl <<
        endl;
    }
  
    // Constructor function
    f_service_ <<
      indent() << "public function __construct($input, $output=null) {" << endl;
    if (!extends.empty()) {
      f_service_ <<
        indent() << "  parent::__construct($input, $output);" << endl;
    } else {
      f_service_ <<
        indent() << "  $this->input_ = $input;" << endl <<
        indent() << "  $this->output_ = $output ? $output : $input;" << endl;
    }
    f_service_ <<
      indent() << "}" << endl << endl;
  
    // Generate client method implementations
    vector<t_function*> functions = tservice->get_functions();
    vector<t_function*>::const_iterator f_iter;
    for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
      t_struct* arg_struct = (*f_iter)->get_arglist();
      const vector<t_field*>& fields = arg_struct->get_members();
      vector<t_field*>::const_iterator fld_iter;
      string funname = (*f_iter)->get_name();
  
      // Open function
      indent(f_service_) <<
        "public function " << function_signature(*f_iter) << endl;
      scope_up(f_service_);
        indent(f_service_) <<
          "$this->send_" << funname << "(";
  
        bool first = true;
        for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
          if (first) {
            first = false;
          } else {
            f_service_ << ", ";
          }
          f_service_ << "$" << (*fld_iter)->get_name();
        }
        f_service_ << ");" << endl;
  
        if (!(*f_iter)->is_oneway()) {
          f_service_ << indent();
          if (!(*f_iter)->get_returntype()->is_void()) {
            f_service_ << "return ";
          }
          f_service_ <<
            "$this->recv_" << funname << "();" << endl;
        }
      scope_down(f_service_);
      f_service_ << endl;
  
      indent(f_service_) <<
        "public function send_" << function_signature(*f_iter) << endl;
      scope_up(f_service_);
  
        std::string argsname = php_namespace(tservice->get_program()) + service_name_ + "_" + (*f_iter)->get_name() + "_args";
  
        f_service_ <<
          indent() << "$args = new " << argsname << "();" << endl;
  
        for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
          f_service_ <<
            indent() << "$args->" << (*fld_iter)->get_name() << " = $" << (*fld_iter)->get_name() << ";" << endl;
        }
  
        f_service_ <<
          indent() << "$bin_accel = ($this->output_ instanceof " << "TBinaryProtocolAccelerated) && function_exists('thrift_protocol_write_binary');" << endl;
  
        f_service_ <<
          indent() << "if ($bin_accel)" << endl;
        scope_up(f_service_);
  
        f_service_ <<
          indent() << "thrift_protocol_write_binary($this->output_, '" << (*f_iter)->get_name() << "', " << "TMessageType::CALL, $args, $this->seqid_, $this->output_->isStrictWrite());" << endl;
  
        scope_down(f_service_);
        f_service_ <<
          indent() << "else" << endl;
        scope_up(f_service_);
  
        // Serialize the request header
        if (binary_inline_) {
          f_service_ <<
            indent() << "$buff = pack('N', (0x80010000 | " << "TMessageType::CALL));" << endl <<
            indent() << "$buff .= pack('N', strlen('" << funname << "'));" << endl <<
            indent() << "$buff .= '" << funname << "';" << endl <<
            indent() << "$buff .= pack('N', $this->seqid_);" << endl;
        } else {
          f_service_ <<
            indent() << "$this->output_->writeMessageBegin('" << (*f_iter)->get_name() << "', " << "TMessageType::CALL, $this->seqid_);" << endl;
        }
  
        // Write to the stream
        if (binary_inline_) {
          f_service_ <<
            indent() << "$args->write($buff);" << endl <<
            indent() << "$this->output_->write($buff);" << endl <<
            indent() << "$this->output_->flush();" << endl;
        } else {
          f_service_ <<
            indent() << "$args->write($this->output_);" << endl <<
            indent() << "$this->output_->writeMessageEnd();" << endl <<
            indent() << "$this->output_->getTransport()->flush();" << endl;
        }
  
      scope_down(f_service_);
  
      scope_down(f_service_);
  
  
      if (!(*f_iter)->is_oneway()) {
        std::string resultname = php_namespace(tservice->get_program()) + service_name_ + "_" + (*f_iter)->get_name() + "_result";
        t_struct noargs(program_);
  
        t_function recv_function((*f_iter)->get_returntype(),
                                 string("recv_") + (*f_iter)->get_name(),
                                 &noargs);
        // Open function
        f_service_ <<
          endl <<
          indent() << "public function " << function_signature(&recv_function) << endl;
        scope_up(f_service_);
  
        f_service_ <<
          indent() << "$bin_accel = ($this->input_ instanceof " << "TBinaryProtocolAccelerated)"
                   << " && function_exists('thrift_protocol_read_binary');" << endl;
  
        f_service_ <<
          indent() << "if ($bin_accel) $result = thrift_protocol_read_binary($this->input_, '" << resultname << "', $this->input_->isStrictRead());" << endl;
        f_service_ <<
          indent() << "else" << endl;
        scope_up(f_service_);
  
        f_service_ <<
          indent() << "$rseqid = 0;" << endl <<
          indent() << "$fname = null;" << endl <<
          indent() << "$mtype = 0;" << endl <<
          endl;
  
        if (binary_inline_) {
          t_field ffname(g_type_string, "fname");
          t_field fseqid(g_type_i32, "rseqid");
          f_service_ <<
            indent() << "$ver = unpack('N', $this->input_->readAll(4));" << endl <<
            indent() << "$ver = $ver[1];" << endl <<
            indent() << "$mtype = $ver & 0xff;" << endl <<
            indent() << "$ver = $ver & 0xffff0000;" << endl <<
            indent() << "if ($ver != 0x80010000) throw new " << "TProtocolException('Bad version identifier: '.$ver, " << "TProtocolException::BAD_VERSION);" << endl;
          generate_deserialize_field(f_service_, &ffname, "", true);
          generate_deserialize_field(f_service_, &fseqid, "", true);
        } else {
          f_service_ <<
            indent() << "$this->input_->readMessageBegin($fname, $mtype, $rseqid);" << endl <<
            indent() << "if ($mtype == " << "TMessageType::EXCEPTION) {" << endl <<
            indent() << "  $x = new " << "TApplicationException();" << endl <<
            indent() << "  $x->read($this->input_);" << endl <<
            indent() << "  $this->input_->readMessageEnd();" << endl <<
            indent() << "  throw $x;" << endl <<
            indent() << "}" << endl;
        }
  
        f_service_ <<
          indent() << "$result = new " << resultname << "();" << endl <<
          indent() << "$result->read($this->input_);" << endl;
  
        if (!binary_inline_) {
          f_service_ <<
            indent() << "$this->input_->readMessageEnd();" << endl;
        }
  
        scope_down(f_service_);
  
        // Careful, only return result if not a void function
        if (!(*f_iter)->get_returntype()->is_void()) {
          f_service_ <<
            indent() << "if ($result->success !== null) {" << endl <<
            indent() << "  return $result->success;" << endl <<
            indent() << "}" << endl;
        }
  
        t_struct* xs = (*f_iter)->get_xceptions();
        const std::vector<t_field*>& xceptions = xs->get_members();
        vector<t_field*>::const_iterator x_iter;
        for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
          f_service_ <<
            indent() << "if ($result->" << (*x_iter)->get_name() << " !== null) {" << endl <<
            indent() << "  throw $result->" << (*x_iter)->get_name() << ";" << endl <<
            indent() << "}" << endl;
        }
  
        // Careful, only return _result if not a void function
        if ((*f_iter)->get_returntype()->is_void()) {
          indent(f_service_) <<
            "return;" << endl;
        } else {
          f_service_ <<
            indent() << "throw new \\Exception(\"" << (*f_iter)->get_name() << " failed: unknown result\");" << endl;
        }
  
      // Close function
      scope_down(f_service_);
      f_service_ << endl;
  
      }
    }
  
    indent_down();
    f_service_ <<
      "}" << endl << endl;
  }
  
  /**
   * Deserializes a field of any type.
   */
  void t_php_generator::generate_deserialize_field(ofstream &out,
                                                   t_field* tfield,
                                                   string prefix,
                                                   bool inclass) {
    t_type* type = get_true_type(tfield->get_type());
  
    if (type->is_void()) {
      throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " +
        prefix + tfield->get_name();
    }
  
    string name = prefix + tfield->get_name();
  
    if (type->is_struct() || type->is_xception()) {
      generate_deserialize_struct(out,
                                  (t_struct*)type,
                                   name);
    } else {
  
      if (type->is_container()) {
        generate_deserialize_container(out, type, name);
      } else if (type->is_base_type() || type->is_enum()) {
  
        if (binary_inline_) {
          std::string itrans = (inclass ? "$this->input_" : "$input");
  
          if (type->is_base_type()) {
            t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
            switch (tbase) {
            case t_base_type::TYPE_VOID:
              throw "compiler error: cannot serialize void field in a struct: " +
                name;
              break;
            case t_base_type::TYPE_STRING:
              out <<
                indent() << "$len = unpack('N', " << itrans << "->readAll(4));" << endl <<
                indent() << "$len = $len[1];" << endl <<
                indent() << "if ($len > 0x7fffffff) {" << endl <<
                indent() << "  $len = 0 - (($len - 1) ^ 0xffffffff);" << endl <<
                indent() << "}" << endl <<
                indent() << "$" << name << " = " << itrans << "->readAll($len);" << endl;
              break;
            case t_base_type::TYPE_BOOL:
              out <<
                indent() << "$" << name << " = unpack('c', " << itrans << "->readAll(1));" << endl <<
                indent() << "$" << name << " = (bool)$" << name << "[1];" << endl;
              break;
            case t_base_type::TYPE_BYTE:
              out <<
                indent() << "$" << name << " = unpack('c', " << itrans << "->readAll(1));" << endl <<
                indent() << "$" << name << " = $" << name << "[1];" << endl;
              break;
            case t_base_type::TYPE_I16:
              out <<
                indent() << "$val = unpack('n', " << itrans << "->readAll(2));" << endl <<
                indent() << "$val = $val[1];" << endl <<
                indent() << "if ($val > 0x7fff) {" << endl <<
                indent() << "  $val = 0 - (($val - 1) ^ 0xffff);" << endl <<
                indent() << "}" << endl <<
                indent() << "$" << name << " = $val;" << endl;
              break;
            case t_base_type::TYPE_I32:
              out <<
                indent() << "$val = unpack('N', " << itrans << "->readAll(4));" << endl <<
                indent() << "$val = $val[1];" << endl <<
                indent() << "if ($val > 0x7fffffff) {" << endl <<
                indent() << "  $val = 0 - (($val - 1) ^ 0xffffffff);" << endl <<
                indent() << "}" << endl <<
                indent() << "$" << name << " = $val;" << endl;
              break;
            case t_base_type::TYPE_I64:
              out <<
                indent() << "$arr = unpack('N2', " << itrans << "->readAll(8));" << endl <<
                indent() << "if ($arr[1] & 0x80000000) {" << endl <<
                indent() << "  $arr[1] = $arr[1] ^ 0xFFFFFFFF;" << endl <<
                indent() << "  $arr[2] = $arr[2] ^ 0xFFFFFFFF;" << endl <<
                indent() << "  $" << name << " = 0 - $arr[1]*4294967296 - $arr[2] - 1;" << endl <<
                indent() << "} else {" << endl <<
                indent() << "  $" << name << " = $arr[1]*4294967296 + $arr[2];" << endl <<
                indent() << "}" << endl;
              break;
            case t_base_type::TYPE_DOUBLE:
              out <<
                indent() << "$arr = unpack('d', strrev(" << itrans << "->readAll(8)));" << endl <<
                indent() << "$" << name << " = $arr[1];" << endl;
              break;
            default:
              throw "compiler error: no PHP name for base type " + t_base_type::t_base_name(tbase) + tfield->get_name();
            }
          } else if (type->is_enum()) {
              out <<
                indent() << "$val = unpack('N', " << itrans << "->readAll(4));" << endl <<
                indent() << "$val = $val[1];" << endl <<
                indent() << "if ($val > 0x7fffffff) {" << endl <<
                indent() << "  $val = 0 - (($val - 1) ^ 0xffffffff);" << endl <<
                indent() << "}" << endl <<
                indent() << "$" << name << " = $val;" << endl;
          }
        } else {
  
          indent(out) <<
            "$xfer += $input->";
  
          if (type->is_base_type()) {
            t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
            switch (tbase) {
            case t_base_type::TYPE_VOID:
              throw "compiler error: cannot serialize void field in a struct: " +
                name;
              break;
            case t_base_type::TYPE_STRING:
              out << "readString($" << name << ");";
              break;
            case t_base_type::TYPE_BOOL:
              out << "readBool($" << name << ");";
              break;
            case t_base_type::TYPE_BYTE:
              out << "readByte($" << name << ");";
              break;
            case t_base_type::TYPE_I16:
              out << "readI16($" << name << ");";
              break;
            case t_base_type::TYPE_I32:
              out << "readI32($" << name << ");";
              break;
            case t_base_type::TYPE_I64:
              out << "readI64($" << name << ");";
              break;
            case t_base_type::TYPE_DOUBLE:
              out << "readDouble($" << name << ");";
              break;
            default:
              throw "compiler error: no PHP name for base type " + t_base_type::t_base_name(tbase);
            }
          } else if (type->is_enum()) {
            out << "readI32($" << name << ");";
          }
          out << endl;
        }
      } else {
        printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n",
               tfield->get_name().c_str(), type->get_name().c_str());
      }
    }
  }
  
  /**
   * Generates an unserializer for a variable. This makes two key assumptions,
   * first that there is a const char* variable named data that points to the
   * buffer for deserialization, and that there is a variable protocol which
   * is a reference to a TProtocol serialization object.
   */
  void t_php_generator::generate_deserialize_struct(ofstream &out,
                                                    t_struct* tstruct,
                                                    string prefix) {
    out <<
      indent() << "$" << prefix << " = new " << php_namespace(tstruct->get_program()) << tstruct->get_name() << "();" << endl <<
      indent() << "$xfer += $" << prefix << "->read($input);" << endl;
  }
  
  void t_php_generator::generate_deserialize_container(ofstream &out,
                                                       t_type* ttype,
                                                       string prefix) {
    string size = tmp("_size");
    string ktype = tmp("_ktype");
    string vtype = tmp("_vtype");
    string etype = tmp("_etype");
  
    t_field fsize(g_type_i32, size);
    t_field fktype(g_type_byte, ktype);
    t_field fvtype(g_type_byte, vtype);
    t_field fetype(g_type_byte, etype);
  
    out <<
      indent() << "$" << prefix << " = array();" << endl <<
      indent() << "$" << size << " = 0;" << endl;
  
    // Declare variables, read header
    if (ttype->is_map()) {
      out <<
        indent() << "$" << ktype << " = 0;" << endl <<
        indent() << "$" << vtype << " = 0;" << endl;
      if (binary_inline_) {
        generate_deserialize_field(out, &fktype);
        generate_deserialize_field(out, &fvtype);
        generate_deserialize_field(out, &fsize);
      } else {
        out <<
          indent() << "$xfer += $input->readMapBegin(" <<
          "$" << ktype << ", $" << vtype << ", $" << size << ");" << endl;
      }
    } else if (ttype->is_set()) {
      if (binary_inline_) {
        generate_deserialize_field(out, &fetype);
        generate_deserialize_field(out, &fsize);
      } else {
        out <<
          indent() << "$" << etype << " = 0;" << endl <<
          indent() << "$xfer += $input->readSetBegin(" <<
          "$" << etype << ", $" << size << ");" << endl;
      }
    } else if (ttype->is_list()) {
      if (binary_inline_) {
        generate_deserialize_field(out, &fetype);
        generate_deserialize_field(out, &fsize);
      } else {
        out <<
          indent() << "$" << etype << " = 0;" << endl <<
          indent() << "$xfer += $input->readListBegin(" <<
          "$" << etype << ", $" << size << ");" << endl;
      }
    }
  
    // For loop iterates over elements
    string i = tmp("_i");
    indent(out) <<
      "for ($" <<
      i << " = 0; $" << i << " < $" << size << "; ++$" << i << ")" << endl;
  
      scope_up(out);
  
      if (ttype->is_map()) {
        generate_deserialize_map_element(out, (t_map*)ttype, prefix);
      } else if (ttype->is_set()) {
        generate_deserialize_set_element(out, (t_set*)ttype, prefix);
      } else if (ttype->is_list()) {
        generate_deserialize_list_element(out, (t_list*)ttype, prefix);
      }
  
      scope_down(out);
  
    if (!binary_inline_) {
      // Read container end
      if (ttype->is_map()) {
        indent(out) << "$xfer += $input->readMapEnd();" << endl;
      } else if (ttype->is_set()) {
        indent(out) << "$xfer += $input->readSetEnd();" << endl;
      } else if (ttype->is_list()) {
        indent(out) << "$xfer += $input->readListEnd();" << endl;
      }
    }
  }
  
  
  /**
   * Generates code to deserialize a map
   */
  void t_php_generator::generate_deserialize_map_element(ofstream &out,
                                                         t_map* tmap,
                                                         string prefix) {
    string key = tmp("key");
    string val = tmp("val");
    t_field fkey(tmap->get_key_type(), key);
    t_field fval(tmap->get_val_type(), val);
  
    indent(out) <<
      declare_field(&fkey, true, true) << endl;
    indent(out) <<
      declare_field(&fval, true, true) << endl;
  
    generate_deserialize_field(out, &fkey);
    generate_deserialize_field(out, &fval);
  
    indent(out) <<
      "$" << prefix << "[$" << key << "] = $" << val << ";" << endl;
  }
  
  void t_php_generator::generate_deserialize_set_element(ofstream &out,
                                                         t_set* tset,
                                                         string prefix) {
    string elem = tmp("elem");
    t_field felem(tset->get_elem_type(), elem);
  
    indent(out) <<
      "$" << elem << " = null;" << endl;
  
    generate_deserialize_field(out, &felem);
  
    indent(out) << "if (is_scalar($" << elem << ")) {" << endl;
    indent(out) << "  $" << prefix << "[$" << elem << "] = true;" << endl;
    indent(out) << "} else {" << endl;
    indent(out) << "  $" << prefix << " []= $" << elem << ";" << endl;
    indent(out) << "}" << endl;
  }
  
  void t_php_generator::generate_deserialize_list_element(ofstream &out,
                                                          t_list* tlist,
                                                          string prefix) {
    string elem = tmp("elem");
    t_field felem(tlist->get_elem_type(), elem);
  
    indent(out) <<
      "$" << elem << " = null;" << endl;
  
    generate_deserialize_field(out, &felem);
  
    indent(out) <<
      "$" << prefix << " []= $" << elem << ";" << endl;
  }
  
  
  /**
   * Serializes a field of any type.
   *
   * @param tfield The field to serialize
   * @param prefix Name to prepend to field name
   */
  void t_php_generator::generate_serialize_field(ofstream &out,
                                                 t_field* tfield,
                                                 string prefix) {
    t_type* type = get_true_type(tfield->get_type());
  
    // Do nothing for void types
    if (type->is_void()) {
      throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " +
        prefix + tfield->get_name();
    }
  
    if (type->is_struct() || type->is_xception()) {
      generate_serialize_struct(out,
                                (t_struct*)type,
                                prefix + tfield->get_name());
    } else if (type->is_container()) {
      generate_serialize_container(out,
                                   type,
                                   prefix + tfield->get_name());
    } else if (type->is_base_type() || type->is_enum()) {
  
      string name = prefix + tfield->get_name();
  
      if (binary_inline_) {
        if (type->is_base_type()) {
          t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
          switch (tbase) {
          case t_base_type::TYPE_VOID:
            throw
              "compiler error: cannot serialize void field in a struct: " + name;
            break;
          case t_base_type::TYPE_STRING:
            out <<
              indent() << "$output .= pack('N', strlen($" << name << "));" << endl <<
              indent() << "$output .= $" << name << ";" << endl;
            break;
          case t_base_type::TYPE_BOOL:
            out <<
              indent() << "$output .= pack('c', $" << name << " ? 1 : 0);" << endl;
            break;
          case t_base_type::TYPE_BYTE:
            out <<
              indent() << "$output .= pack('c', $" << name << ");" << endl;
            break;
          case t_base_type::TYPE_I16:
            out <<
              indent() << "$output .= pack('n', $" << name << ");" << endl;
            break;
          case t_base_type::TYPE_I32:
            out <<
              indent() << "$output .= pack('N', $" << name << ");" << endl;
            break;
          case t_base_type::TYPE_I64:
            out <<
              indent() << "$output .= pack('N2', $" << name << " >> 32, $" << name << " & 0xFFFFFFFF);" << endl;
            break;
          case t_base_type::TYPE_DOUBLE:
            out <<
              indent() << "$output .= strrev(pack('d', $" << name << "));" << endl;
            break;
          default:
            throw "compiler error: no PHP name for base type " + t_base_type::t_base_name(tbase);
          }
        } else if (type->is_enum()) {
          out <<
            indent() << "$output .= pack('N', $" << name << ");" << endl;
        }
      } else {
  
        indent(out) <<
          "$xfer += $output->";
  
        if (type->is_base_type()) {
          t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
          switch (tbase) {
          case t_base_type::TYPE_VOID:
            throw
              "compiler error: cannot serialize void field in a struct: " + name;
            break;
          case t_base_type::TYPE_STRING:
            out << "writeString($" << name << ");";
            break;
          case t_base_type::TYPE_BOOL:
            out << "writeBool($" << name << ");";
            break;
          case t_base_type::TYPE_BYTE:
            out << "writeByte($" << name << ");";
            break;
          case t_base_type::TYPE_I16:
            out << "writeI16($" << name << ");";
            break;
          case t_base_type::TYPE_I32:
            out << "writeI32($" << name << ");";
            break;
          case t_base_type::TYPE_I64:
            out << "writeI64($" << name << ");";
            break;
          case t_base_type::TYPE_DOUBLE:
            out << "writeDouble($" << name << ");";
            break;
          default:
            throw "compiler error: no PHP name for base type " + t_base_type::t_base_name(tbase);
          }
        } else if (type->is_enum()) {
          out << "writeI32($" << name << ");";
        }
        out << endl;
      }
    } else {
      printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n",
             prefix.c_str(),
             tfield->get_name().c_str(),
             type->get_name().c_str());
    }
  }
  
  /**
   * Serializes all the members of a struct.
   *
   * @param tstruct The struct to serialize
   * @param prefix  String prefix to attach to all fields
   */
  void t_php_generator::generate_serialize_struct(ofstream &out,
                                                  t_struct* tstruct,
                                                  string prefix) {
    (void) tstruct;
    indent(out) <<
      "$xfer += $" << prefix << "->write($output);" << endl;
  }
  
  /**
   * Writes out a container
   */
  void t_php_generator::generate_serialize_container(ofstream &out,
                                                     t_type* ttype,
                                                     string prefix) {
    scope_up(out);
  
    if (ttype->is_map()) {
      if (binary_inline_) {
        out <<
          indent() << "$output .= pack('c', " << type_to_enum(((t_map*)ttype)->get_key_type()) << ");" << endl <<
          indent() << "$output .= pack('c', " << type_to_enum(((t_map*)ttype)->get_val_type()) << ");" << endl <<
          indent() << "$output .= strrev(pack('l', count($" << prefix << ")));" << endl;
      } else {
        indent(out) <<
          "$output->writeMapBegin(" <<
          type_to_enum(((t_map*)ttype)->get_key_type()) << ", " <<
          type_to_enum(((t_map*)ttype)->get_val_type()) << ", " <<
          "count($" << prefix << "));" << endl;
      }
    } else if (ttype->is_set()) {
      if (binary_inline_) {
        out <<
          indent() << "$output .= pack('c', " << type_to_enum(((t_set*)ttype)->get_elem_type()) << ");" << endl <<
          indent() << "$output .= strrev(pack('l', count($" << prefix << ")));" << endl;
  
      } else {
        indent(out) <<
          "$output->writeSetBegin(" <<
          type_to_enum(((t_set*)ttype)->get_elem_type()) << ", " <<
          "count($" << prefix << "));" << endl;
      }
    } else if (ttype->is_list()) {
      if (binary_inline_) {
        out <<
          indent() << "$output .= pack('c', " << type_to_enum(((t_list*)ttype)->get_elem_type()) << ");" << endl <<
          indent() << "$output .= strrev(pack('l', count($" << prefix << ")));" << endl;
  
      } else {
        indent(out) <<
          "$output->writeListBegin(" <<
          type_to_enum(((t_list*)ttype)->get_elem_type()) << ", " <<
          "count($" << prefix << "));" << endl;
      }
    }
  
    scope_up(out);
  
    if (ttype->is_map()) {
      string kiter = tmp("kiter");
      string viter = tmp("viter");
      indent(out) <<
        "foreach ($" << prefix << " as " <<
        "$" << kiter << " => $" << viter << ")" << endl;
      scope_up(out);
      generate_serialize_map_element(out, (t_map*)ttype, kiter, viter);
      scope_down(out);
    } else if (ttype->is_set()) {
      string iter = tmp("iter");
      string iter_val = tmp("iter");
      indent(out) <<
        "foreach ($" << prefix << " as $" << iter << " => $" << iter_val << ")" << endl;
      scope_up(out);
      indent(out) << "if (is_scalar($" << iter_val << ")) {" << endl;
      generate_serialize_set_element(out, (t_set*)ttype, iter);
      indent(out) << "} else {" << endl;
      generate_serialize_set_element(out, (t_set*)ttype, iter_val);
      indent(out) << "}" << endl;
      scope_down(out);
    } else if (ttype->is_list()) {
      string iter = tmp("iter");
      indent(out) <<
        "foreach ($" << prefix << " as $" << iter << ")" << endl;
      scope_up(out);
      generate_serialize_list_element(out, (t_list*)ttype, iter);
      scope_down(out);
    }
  
    scope_down(out);
  
    if (!binary_inline_) {
      if (ttype->is_map()) {
        indent(out) <<
          "$output->writeMapEnd();" << endl;
      } else if (ttype->is_set()) {
        indent(out) <<
          "$output->writeSetEnd();" << endl;
      } else if (ttype->is_list()) {
        indent(out) <<
          "$output->writeListEnd();" << endl;
      }
    }
  
    scope_down(out);
  }
  
  /**
   * Serializes the members of a map.
   *
   */
  void t_php_generator::generate_serialize_map_element(ofstream &out,
                                                       t_map* tmap,
                                                       string kiter,
                                                       string viter) {
    t_field kfield(tmap->get_key_type(), kiter);
    generate_serialize_field(out, &kfield, "");
  
    t_field vfield(tmap->get_val_type(), viter);
    generate_serialize_field(out, &vfield, "");
  }
  
  /**
   * Serializes the members of a set.
   */
  void t_php_generator::generate_serialize_set_element(ofstream &out,
                                                       t_set* tset,
                                                       string iter) {
    t_field efield(tset->get_elem_type(), iter);
    generate_serialize_field(out, &efield, "");
  }
  
  /**
   * Serializes the members of a list.
   */
  void t_php_generator::generate_serialize_list_element(ofstream &out,
                                                        t_list* tlist,
                                                        string iter) {
    t_field efield(tlist->get_elem_type(), iter);
    generate_serialize_field(out, &efield, "");
  }
  
  /**
   * Emits a PHPDoc comment for the given contents
   */
  void t_php_generator::generate_php_docstring_comment(ofstream &out, string contents) {
    generate_docstring_comment(out,
                               "/**\n",
                               " * ", contents,
                               " */\n");
  }
  
  /**
   * Emits a PHPDoc comment if the provided object has a doc in Thrift
   */
  void t_php_generator::generate_php_doc(ofstream &out, t_doc* tdoc) {
    if (tdoc->has_doc()) {
      generate_php_docstring_comment(out, tdoc->get_doc());
    }
  }
  
  /**
   * Emits a PHPDoc comment for a field
   */
  void t_php_generator::generate_php_doc(ofstream &out, t_field* field) {
    stringstream ss;
  
    // prepend free-style doc if available
    if (field->has_doc()) {
      ss << field->get_doc() << endl;
    }
  
    // append @var tag
    t_type* type = get_true_type(field->get_type());
    ss << "@var " << type_to_phpdoc(type) << endl;
  
    generate_php_docstring_comment(out, ss.str());
  }
  
  /**
   * Emits a PHPDoc comment for a function
   */
  void t_php_generator::generate_php_doc(ofstream &out, t_function* function) {
    stringstream ss;
    if (function->has_doc()) {
      ss << function->get_doc() << endl;
    }
  
    // generate parameter types doc
    const vector<t_field*>& args = function->get_arglist()->get_members();
    vector<t_field*>::const_iterator a_iter;
    for (a_iter = args.begin(); a_iter != args.end(); ++a_iter) {
      t_field* arg = *a_iter;
      ss << "@param " << type_to_phpdoc(arg->get_type()) << " $" << arg->get_name();
      if (arg->has_doc()) {
        ss << " " << arg->get_doc();
      }
      ss << endl;
    }
  
    // generate return type doc
    t_type* ret_type = function->get_returntype();
    if (!ret_type->is_void() || ret_type->has_doc()) {
      ss << "@return " << type_to_phpdoc(ret_type);
      if (ret_type->has_doc()) {
        ss << " " << ret_type->get_doc();
      }
      ss << endl;
    }
  
    // generate exceptions doc
    const vector<t_field*>& excs = function->get_xceptions()->get_members();
    vector<t_field*>::const_iterator e_iter;
    for (e_iter = excs.begin(); e_iter != excs.end(); ++e_iter) {
      t_field* exc = *e_iter;
      ss << "@throws " << type_to_phpdoc(exc->get_type());
      if (exc->has_doc()) {
        ss << " " << exc->get_doc();
      }
      ss << endl;
    }
  
    generate_docstring_comment(out,
                             "/**\n",
                             " * ", ss.str(),
                             " */\n");
  }
  
  
  /**
   * Declares a field, which may include initialization as necessary.
   *
   * @param ttype The type
   */
  string t_php_generator::declare_field(t_field* tfield, bool init, bool obj) {
    string result = "$" + tfield->get_name();
    if (init) {
      t_type* type = get_true_type(tfield->get_type());
      if (type->is_base_type()) {
        t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
        switch (tbase) {
        case t_base_type::TYPE_VOID:
          break;
        case t_base_type::TYPE_STRING:
          result += " = ''";
          break;
        case t_base_type::TYPE_BOOL:
          result += " = false";
          break;
        case t_base_type::TYPE_BYTE:
        case t_base_type::TYPE_I16:
        case t_base_type::TYPE_I32:
        case t_base_type::TYPE_I64:
          result += " = 0";
          break;
        case t_base_type::TYPE_DOUBLE:
          result += " = 0.0";
          break;
        default:
          throw "compiler error: no PHP initializer for base type " + t_base_type::t_base_name(tbase);
        }
      } else if (type->is_enum()) {
        result += " = 0";
      } else if (type->is_container()) {
        result += " = array()";
      } else if (type->is_struct() || type->is_xception()) {
        if (obj) {
          result += " = new " + php_namespace(type->get_program()) + type->get_name() + "()";
        } else {
          result += " = null";
        }
      }
    }
    return result + ";";
  }
  
  /**
   * Renders a function signature of the form 'type name(args)'
   *
   * @param tfunction Function definition
   * @return String of rendered function definition
   */
  string t_php_generator::function_signature(t_function* tfunction,
                                             string prefix) {
    return
      prefix + tfunction->get_name() +
      "(" + argument_list(tfunction->get_arglist()) + ")";
  }
  
  /**
   * Renders a field list
   */
  string t_php_generator::argument_list(t_struct* tstruct, bool addTypeHints) {
    string result = "";
  
    const vector<t_field*>& fields = tstruct->get_members();
    vector<t_field*>::const_iterator f_iter;
    bool first = true;
    for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
      if (first) {
        first = false;
      } else {
        result += ", ";
      }
  
      t_type* type = (*f_iter)->get_type();
  
      //Set type name
      if (addTypeHints)
      {
        if (type->is_struct())
        {
          string className = php_namespace(type->get_program()) + php_namespace_directory("Definition", false) + classify(type->get_name());
  
          result += className + " ";
        }
        else if (type->is_container())
        {
          result += "array ";
        }
      }
  
      result += "$" + (*f_iter)->get_name();
    }
    return result;
  }
  
  /**
   * Gets a typecast string for a particular type.
   */
  string t_php_generator::type_to_cast(t_type* type) {
    if (type->is_base_type()) {
      t_base_type* btype = (t_base_type*)type;
      switch (btype->get_base()) {
      case t_base_type::TYPE_BOOL:
        return "(bool)";
      case t_base_type::TYPE_BYTE:
      case t_base_type::TYPE_I16:
      case t_base_type::TYPE_I32:
      case t_base_type::TYPE_I64:
        return "(int)";
      case t_base_type::TYPE_DOUBLE:
        return "(double)";
      case t_base_type::TYPE_STRING:
        return "(string)";
      default:
        return "";
      }
    } else if (type->is_enum()) {
      return "(int)";
    }
    return "";
  }
  
  /**
   * Converts the parse type to a C++ enum string for the given type.
   */
  string t_php_generator ::type_to_enum(t_type* type) {
    type = get_true_type(type);
  
    if (type->is_base_type()) {
      t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
      switch (tbase) {
      case t_base_type::TYPE_VOID:
        throw "NO T_VOID CONSTRUCT";
      case t_base_type::TYPE_STRING:
        return "TType::STRING";
      case t_base_type::TYPE_BOOL:
        return "TType::BOOL";
      case t_base_type::TYPE_BYTE:
        return "TType::BYTE";
      case t_base_type::TYPE_I16:
        return "TType::I16";
      case t_base_type::TYPE_I32:
        return "TType::I32";
      case t_base_type::TYPE_I64:
        return "TType::I64";
      case t_base_type::TYPE_DOUBLE:
        return "TType::DOUBLE";
      }
    } else if (type->is_enum()) {
      return "TType::I32";
    } else if (type->is_struct() || type->is_xception()) {
      return "TType::STRUCT";
    } else if (type->is_map()) {
      return "TType::MAP";
    } else if (type->is_set()) {
      return "TType::SET";
    } else if (type->is_list()) {
      return "TType::LST";
    }
  
    throw "INVALID TYPE IN type_to_enum: " + type->get_name();
  }
  
  /**
   * Converts the parse type to a PHPDoc string for the given type.
   */
  string t_php_generator ::type_to_phpdoc(t_type* type) {
    type = get_true_type(type);
  
    if (type->is_base_type()) {
      t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
      switch (tbase) {
      case t_base_type::TYPE_VOID:
        return "void";
      case t_base_type::TYPE_STRING:
        return "string";
      case t_base_type::TYPE_BOOL:
        return "bool";
      case t_base_type::TYPE_BYTE:
        return "int";
      case t_base_type::TYPE_I16:
        return "int";
      case t_base_type::TYPE_I32:
        return "int";
      case t_base_type::TYPE_I64:
        return "int";
      case t_base_type::TYPE_DOUBLE:
        return "double";
      }
    } else if (type->is_enum()) {
      return "int";
    } else if (type->is_struct() || type->is_xception()) {
      return php_namespace(type->get_program()) + type->get_name();
    } else if (type->is_map()) {
      return "array";
    } else if (type->is_set()) {
      t_set* tset = static_cast<t_set*>(type);
      t_type* t_elem = tset->get_elem_type();
      if (t_elem->is_container()) {
        return "(" + type_to_phpdoc(t_elem) + ")[]";
      } else {
        return type_to_phpdoc(t_elem) + "[]";
      }
    } else if (type->is_list()) {
      t_list* tlist = static_cast<t_list*>(type);
      t_type* t_elem = tlist->get_elem_type();
      if (t_elem->is_container()) {
        return "(" + type_to_phpdoc(t_elem) + ")[]";
      } else {
        return type_to_phpdoc(t_elem) + "[]";
      }
    }
  
    throw "INVALID TYPE IN type_to_enum: " + type->get_name();
  }
  
  THRIFT_REGISTER_GENERATOR(php, "PHP",
  "    inlined:         Generate PHP inlined files\n"
  "    server:          Generate PHP server stubs\n"
  "    oop:             Generate PHP with object oriented subclasses\n"
  "    rest:            Generate PHP REST processors\n"
  "    nsglobal=NAME:   Set global namespace\n"
  "    validate:        Generate PHP validator methods\n"
  )
  
  