Introduktion
These functions are intended for work with WDDX.
Krav
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.
Windows-versionen av
PHP har inbyggt stöd för det här tillägget.
Du behöver inte ladda några ytterligare tillägg för att använda
dessa funktioner.
Konfiguration under drift
Den här utbyggnaden definerar inte några konfigurationsdirektiv i php.ini.
Resurstyper
Den här utbyggnaden har inte några resurstyper definerade.
Fördefinerade konstanter
Den här utbyggnaden har inte några konstanter definerade.
Exempel
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.
Exempel 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> |
|
Exempel 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> |
|
Not:
If you want to serialize non-ASCII characters you have to set
the appropriate locale before doing so (see
setlocale()).