wddx_serialize_vars
(PHP 4, PHP 5)
wddx_serialize_vars — Serialize variables into a WDDX packet
Описание
Creates a WDDX packet with a structure that contains the serialized representation of the passed variables.
Список параметров
This function takes a variable number of parameters.
-
var_name -
Can be either a string naming a variable or an array containing strings naming the variables or another array, etc.
-
... -
Возвращаемые значения
Returns the WDDX packet, or FALSE on error.
Примеры
Пример #1 wddx_serialize_vars() example
<?php
$a = 1;
$b = 5.5;
$c = array("blue", "orange", "violet");
$d = "colors";
$clvars = array("c", "d");
echo wddx_serialize_vars("a", "b", $clvars);
?>
Результат выполнения данного примера:
<wddxPacket version='1.0'><header/><data><struct><var name='a'><number>1</number></var> <var name='b'><number>5.5</number></var><var name='c'><array length='3'> <string>blue</string><string>orange</string><string>violet</string></array></var> <var name='d'><string>colors</string></var></struct></data></wddxPacket>
Коментарии
Be careful using WDDX - functions on object variables. As I just had to find out the following won't work:
<?php
class Test
{
var $str;
var $wddx;
function Test()
{
$this->str = "test";
$this->wddx = wddx_serialize_vars("this->str");
print(htmlentities($this->wddx));
}
}
new Test();
?>
That's what you'll get:
<wddxPacket version='1.0'><header/><data><struct></struct></data></wddxPacket>
You can use globals to get around the above in classes:
<?php
class Test
{
var $str;
var $wddx;
function Test()
{
$this->str = "test";
$this->wddx_serialize($this->str);
header('Content-Type: text/xml');
echo ($this->wddx);
}
function wddx_serialize($var) {
global $wddxtemp;
unset($wddxtemp);
$wddxtemp = $var;
$this->wddx = wddx_serialize_vars("wddxtemp");
}
}
new Test();
?>
-terry
You can use globals to get around the above in classes:
<?php
class Test
{
var $str;
var $wddx;
function Test()
{
$this->str = "test";
$this->wddx_serialize($this->str);
header('Content-Type: text/xml');
echo ($this->wddx);
}
function wddx_serialize($var) {
global $wddxtemp;
unset($wddxtemp);
$wddxtemp = $var;
$this->wddx = wddx_serialize_vars("wddxtemp");
}
}
new Test();
?>
-terry
The above feature will cause a slight trouble since the name of the variable will always be "wddxtemp" but you can use preg_replace to fix that.
Also, a better approach is to serialize the entire class. WDDX will that write a reserved "php_class_name" variable which can be used to reconstruct the class during a deserialize.
A function to use for dates with PHP & WDDX
getdate()
$ta="<FORM><TEXTAREA rows=15 cols=80>" ;
$te="</TEXTAREA></FORM>";
$packet_id=wddx_packet_start("Date Example--");
$myDate=getdate();
wddx_add_vars($packet_id,'myDate');
$package=wddx_packet_end($packet_id);
print($ta.$package.$te);
Produces:
<wddxPacket version='1.0'><header><comment>Date Example--</comment></header>
<data><struct><var name='myDate'>
<struct><var name='seconds'><number>12</number></var>
<var name='minutes'><number>55</number></var>
<var name='hours'><number>1</number></var>
<var name='mday'><number>13</number></var>
<var name='wday'><number>1</number></var>
<var name='mon'><number>10</number></var>
<var name='year'><number>2003</number></var>
<var name='yday'><number>285</number></var>
<var name='weekday'><string>Monday</string></var>
<var name='month'><string>October</string></var>
<var name='0'><number>1066031712</number>
</var></struct></var></struct></data></wddxPacket>