Description:
------------
Using either PHP 5.2.6 or 5.3.2, wddx_deserialize() corrupts an empty integer field.

Test script:
---------------
<?php

$message = "<wddxPacket version='1.0'><header><comment>my_command</comment></header><data><struct><var name='handle'><number></number></var></struct></data></wddxPacket>";

print_r($message);
echo "\n";
print_r(wddx_deserialize($message));

?>

Expected result:
----------------
<wddxPacket version='1.0'><header><comment>my_command</comment></header><data><struct><var name='handle'><number></number></var></struct></data></wddxPacket>
Array
(
    [handle] => 
)


Actual result:
--------------
<wddxPacket version='1.0'><header><comment>my_command</comment></header><data><struct><var name='handle'><number></number></var></struct></data></wddxPacket>
Array
(
    [handle] => 414880152
)

The number is different every time the script is run.