PHP 小方法之 二维数组排序

if (! function_exists ( 'multi_array_sort' )) {
    function multi_array_sort($arr, $keys, $type = 'desc') {
        $keysvalue = $new_array = array ();
        foreach ( $arr as $k => $v ) {
            $keysvalue [$k] = $v [$keys];
        }
        if ($type == 'asc') {
            asort ( $keysvalue );
        } else {
            arsort ( $keysvalue );
        }
        reset ( $keysvalue );
        foreach ( $keysvalue as $k => $v ) {
            $new_array [] = $arr [$k];
        }
        return $new_array;
    }
}