Introduzione
These functions are intended for work with WDDX.
Requisiti
In order to use WDDX, you will need to install the expat library
(which comes with Apache 1.3.7 or higher).
Installazione
After installing expat compile PHP with
--enable-wddx.
La versione per Windows di PHP
ha già compilato il supporto per questo modulo. Non occorre caricare alcun modulo
addizionale per potere utilizzare queste funzioni.
Configurazione di Runtime
Questa estensione non definisce
alcuna direttiva di configurazione in php.ini
Tipi di risorse
Questa estensione non definisce alcun tipo di risorsa.
Costanti predefinite
Questa estensione non definisce alcuna costante.
Esempi
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.
Esempio 1. Serializing a single value with WDDX
<?php echo wddx_serialize_value("PHP to WDDX packet example", "PHP packet"); ?>
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This example will produce:
<wddxPacket version='1.0'><header comment='PHP packet'/><data>
<string>PHP to WDDX packet example</string></data></wddxPacket> |
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Esempio 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; ?>
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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> |
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Nota:
If you want to serialize non-ASCII characters you have to set
the appropriate locale before doing so (see
setlocale()).