wddx_serialize_vars

(PHP 4, PHP 5, PHP 7)

wddx_serialize_vars — Serialize variables into a WDDX packet

Warning

该函数已在 PHP 7.4.0 中移除。

说明

wddx_serialize_vars ( mixed $var_name , mixed ...$var_names ) : string

Creates a WDDX packet with a structure that contains the serialized representation of the passed variables.

参数

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.
var_names

返回值

Returns the WDDX packet, or false on error.

范例

Example #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);
?>

以上例程会输出：

<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>

User Contributed Notes

kangus at jaga dot us 13-Oct-2003 03:57


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>

tychay at alumni dot caltech dot edu 31-Mar-2002 12:15


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.

tychay at alumni dot caltech dot edu 30-Mar-2002 10:49


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

tychay at alumni dot caltech dot edu 30-Mar-2002 10:45


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

christian dot knoflach at gmx dot at 21-May-2001 03:56


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>