php二维数组排序

function array_sort($arr, $keys, $order = 0)
{
    if (!is_array($arr)) {
        return false;
    }
    $keysvalue = [];
    foreach ($arr as $key => $val) {
        $keysvalue[$key] = $val[$keys];
    }
    if ($order == 0) {
        asort($keysvalue);
    } else {
        arsort($keysvalue);
    }
    reset($keysvalue);

    foreach ($keysvalue as $key => $vals) {
        $keysort[$key] = $key;
    }

    $new_arr = [];
    foreach ($keysort as $key => $val) {
        $new_arr[$key] = $arr[$val];
    }

    return $new_arr;
}