Description:
------------
property_exists functio is not working.



Test script:
---------------
<?php
$XML = simplexml_load_string($someRawXmlString, 'SimpleXMLElement', LIBXML_NOCDATA);
$data = json_decode(json_encode($XML));
$obj = $data;

if (property_exists($data, 'some_property')) {

}

?>

The above code will not work for some weird reason. The same goes for DateTime class.

<?php

$datetime1 = new DateTime('2009-10-11');
$datetime2 = new DateTime('2009-10-13');
$interval = $datetime1->diff($datetime2);

var_dump(property_exists($interval, 'm')) //false when the property exists;

?>