在 PHP 中，在各个级别以递归方式对多维数组进行排序

php arrays sorting multidimensional-array recursion

2022-08-31 00:16:30

我有一个这种形式的数组：

Array
(
    [first_level] => Array
        (
            [dir_3] => Array
                (
                    [subdir_1] => Array
                        (
                            [file_2.mp4] => stdClass Object
                                (
                                    [name] => file_2.mp4
                                )

                            [file_1.mp4] => stdClass Object
                                (
                                    [name] => file_1.mp4
                                )

                        )
                )
            [dir_1] => Array
                (
                    [subdir_2] => Array
                        (
                            [file_6.mp4] => stdClass Object
                                (
                                    [name] => file_6.mp4
                                )
                            [file_9.mp4] => stdClass Object
                                (
                                    [name] => file_9.mp4
                                )
                            [file_7.mp4] => stdClass Object
                                (
                                    [name] => file_7.mp4
                                )
                        )
                    [subdir_1] => Array
                        (
                            [file_8] => stdClass Object
                                (
                                    [name] => file_8.mp4
                                )

                        )
        )
    )
)

我需要这样订购：

Array
(
    [first_level] => Array
        (
            [dir_1] => Array
                (
                    [subdir_1] => Array
                        (
                            [file_8] => stdClass Object
                                (
                                    [name] => file_8.mp4
                                )
                        )
                    [subdir_2] => Array
                        (
                            [file_6.mp4] => stdClass Object
                                (
                                    [name] => file_6.mp4
                                )
                            [file_7.mp4] => stdClass Object
                                (
                                    [name] => file_7.mp4
                                )
                            [file_9.mp4] => stdClass Object
                                (
                                    [name] => file_9.mp4
                                )
                        )
        )
        [dir_3] => Array
                (
                    [subdir_1] => Array
                        (
                            [file_1.mp4] => stdClass Object
                                (
                                    [name] => file_1.mp4
                                )

                            [file_2.mp4] => stdClass Object
                                (
                                    [name] => file_2.mp4
                                )

                        )
                )
    )
)

我浏览了其他类似的问题，我一直试图用usort解决它，但我无法理解它。：S

有什么想法吗？

答案 1

使用递归函数：

// Note this method returns a boolean and not the array
function recur_ksort(&$array) {
   foreach ($array as &$value) {
      if (is_array($value)) recur_ksort($value);
   }
   return ksort($array);
}

答案 2

您需要使用 ksort。

// Not tested ...    
function recursive_ksort(&$array) {
    foreach ($array as $k => &$v) {
        if (is_array($v)) {
            recursive_ksort($v);
        }
    }
    return ksort($array);
}