function serialize($object)
{
$object = parent::prepareSerializedObject($object);
$result = serialize($object);
// Let PHP's built-in serialize() function do the work
return $result;
}
function serialize($object)
{
if (is_null($object)) {
return 'null';
}
$object = parent::prepareSerializedObject($object);
$json = json_encode($this->unsetNull($object));
return $json;
}
