在 PHP 中的每个级别递归排序多维数组 [英] Order multidimensional array recursively at each level in PHP

问题描述

我有一个这种形式的数组:

I have an array of this form:

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，我一直在尝试使用 usor 但我无法理解它.:S

I browsed through other similar questions, and I've been trying to solve it with usort but I couldn't get my head around it. :S

有什么想法吗?

推荐答案

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);
}

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