通过键值对多维数组进行分组？ [英] Group a multidimensional array by a Key value?

问题描述

我有一个多维数组，我试图根据键值对数组进行分组。

I have an multi dimensional array i am trying to group the array based on the key value.

所以，我正在尝试按键对它们进行分组，但是我无法根据键值对
数组进行分组。

So, I'm trying to group them by key but i am not getting to group the array based on the key values.

下面是原始数组

 Array
    (
        [0] => Array
            (
                [User] => Array
                    (
                        [id] => 2
                        [feature] => AddUser
                        [feature_level] => 1
                        [parent_feature] => 1
                    )

            )

        [1] => Array
            (
                [User] => Array
                    (
                        [id] => 3
                        [feature] => EditUser
                        [feature_level] => 1
                        [parent_feature] => 1
                    )

            )

        [2] => Array
            (
                [Candidate] => Array
                    (
                        [id] => 5
                        [feature] => AddCandidate
                        [feature_level] => 1
                        [parent_feature] => 4
                    )

            )

        [3] => Array
            (
                [Candidate] => Array
                    (
                        [id] => 6
                        [feature] => EditCandidate
                        [feature_level] => 1
                        [parent_feature] => 4
                    )

            )

    )

我需要的是

What i need is

   Array (

   [User] => Array (
          [0] => Array (
                    [id] => 2
                    [feature] => AddUser
                    [feature_level] => 1
                    [parent_feature] => 1
                    )
          [1] => Array (
                    [id] => 3
                    [feature] => EditUser
                    [feature_level] => 1
                    [parent_feature] => 1
                    )
          )

   [Candidate] => Array (
          [0] => Array (
                    [id] => 5
                    [feature] => AddCandidate
                    [feature_level] => 1
                    [parent_feature] => 4
                 )

          [1] => Array (
                    [id] => 5
                    [feature] => EditCandidate
                    [feature_level] => 1
                    [parent_feature] => 4
                 )
          )

)

推荐答案

这里是带有演示的解决方案。可能会帮助您：

Here is a solution with demo. Might help you:

// $myArr is your origional array.
$result_arr = [];

array_walk($myArr,function($v,$k) use (&$result_arr){
   $result_arr[key($v)][] = $v[key($v)]; 
});

print_r($result_arr);

单击此处获取演示

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