PHP Object 转 Array

/**
 * object 转 array
 */
function object_to_array($obj){
	$_arr = is_object($obj)? get_object_vars($obj) : $obj;
	foreach ($_arr as $key => $val) {
		$val = (is_array($val)) || is_object($val) ? object_to_array($val) : $val;
		$arr[$key] = $val;
	}

	return $arr;
}