   #PHP Manual Function Reference w32api_set_call_method wddx_add_vars

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CX. WDDX Functions

Introduction

   These functions are intended for work with WDDX.

Requirements

   In order to use WDDX, you will need to install the expat library
   (which comes with Apache 1.3.7 or higher).

Installation

   After installing expat compile PHP with --enable-wddx.

   The windows version of PHP has built in support for this extension.
   You do not need to load any additional extension in order to use these
   functions.

Runtime Configuration

   This extension has no configuration directives defined in php.ini.

Resource Types

   This extension has no resource types defined.

Predefined Constants

   This extension has no constants defined.

Examples

   All the functions that serialize variables use the first element of an
   array to determine whether the array is to be serialized into an array
   or structure. If the first element has string key, then it is
   serialized into a structure, otherwise, into an array.

   Example 1. Serializing a single value with WDDX
   <?php
   echo wddx_serialize_value("PHP to WDDX packet example", "PHP packet");
   ?>

   This example will produce:
<wddxPacket version='1.0'><header comment='PHP packet'/><data>
<string>PHP to WDDX packet example</string></data></wddxPacket>

   Example 2. Using incremental packets with WDDX
   <?php
   $pi = 3.1415926;
   $packet_id = wddx_packet_start("PHP");
   wddx_add_vars($packet_id, "pi");
   /* Suppose $cities came from database */
   $cities = array("Austin", "Novato", "Seattle");
   wddx_add_vars($packet_id, "cities");
   $packet = wddx_packet_end($packet_id);
   echo $packet;
   ?>

   This example will produce:
<wddxPacket version='1.0'><header comment='PHP'/><data><struct>
<var name='pi'><number>3.1415926</number></var><var name='cities'>
<array length='3'><string>Austin</string><string>Novato</string>
<string>Seattle</string></array></var></struct></data></wddxPacket>

     Note: If you want to serialize non-ASCII characters you have to set
     the appropriate locale before doing so (see setlocale()).

   Table of Contents
   wddx_add_vars --  Add variables to a WDDX packet with the specified ID

   wddx_deserialize -- Deserializes a WDDX packet
   wddx_packet_end -- Ends a WDDX packet with the specified ID
   wddx_packet_start --  Starts a new WDDX packet with structure inside
          it

   wddx_serialize_value -- Serialize a single value into a WDDX packet
   wddx_serialize_vars -- Serialize variables into a WDDX packet
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