function ex_arr_replace_recursive(&$arr, &$arr2) {
	$cb = function (&$arr, &$arr2) use (&$cb) {
		foreach ($arr2 as $key => &$value) {
			if (is_array($value)) {
				if (!isset($arr[$key]) or !is_array($arr[$key])) {
					$arr[$key] = $value;
				} else {
					$cb($arr[$key], $arr2[$key]);
				}
			} else {
				$arr[$key] = $value;
			}
		}
	};

	$cb($arr, $arr2);
}