public function serializeData($data) {
		if(is_array($data)) {
			ksort($data);
			$return = '';
			foreach($data as $key => $value) {
				if(is_numeric($key)) {
					$return .= $this->serializeData($value);
				} else {
					$return .= $key . $this->serializeData($value);
				}
			}
			return $return;
		} else {
			return (string)$data;
		}
	}