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    wddx_serialize_vars

    (PHP 4, PHP 5, PHP 7)

    wddx_serialize_vars — Serialize variables into a WDDX packet

    警告

    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.

    示例

    示例 #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);
    ?>

    以上示例会输出：

    <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>

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    User Contributed Notes 5 notes

    up
    2
    kangus at jaga dot us
    21 years ago
    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>
    up
    2
    tychay at alumni dot caltech dot edu
    22 years ago
    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.
    up
    2
    tychay at alumni dot caltech dot edu
    22 years ago
    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
    up
    0
    tychay at alumni dot caltech dot edu
    22 years ago
    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
    up
    0
    christian dot knoflach at gmx dot at
    23 years ago
    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>
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