Description:
------------
wddx_serialize_value broken in php5-200510051430

Reproduce code:
---------------
<?php
$arr = array ( 
 'house_list' => array (
        0 => array (
                        'id' => '2910',
                        'name' => '2',
                ),
));

echo wddx_serialize_value($arr)."\n";
?>

Expected result:
----------------
work/php-5.1.0RC1.OCI8/sapi/cli/php -f wddx.php                                                                               [11:17]
<wddxPacket version='1.0'><header/><data><struct><var name='house_list'><array length='1'><struct><var name='id'><string>2910</string></var><var name='name'><string>2</string></var></struct></array></var></struct></data></wddxPacket>
[si@dbs] /home/sitnikov>work/php5-200510051430/sapi/cli/php -f wddx.php                                                                               [11:17]
<wddxPacket version='1.0'><header/><data><struct><var name=<array length='1'><struct><v<string>2910</string></var><var<string>2</string></var></struct></array></var></struct></data></wddxPacket>

Actual result:
--------------
work/php5-200510051430/sapi/cli/php -f wddx.php                                                                               [11:17]
<wddxPacket version='1.0'><header/><data><struct><var name=<array length='1'><struct><v<string>2910</string></var><var<string>2</string></var></struct></array></var></struct></data></wddxPacket>