按键值对多维数组进行分组

Question

我

有一个多维数组，我正在尝试根据键值对数组进行分组。

所以，我正在尝试按键对它们进行分组，但我无法对 基于键值的数组。

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

   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
                 )
          )
)

Answer 1

这是一个带有演示的解决方案。可能会帮助您：

// $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);

点击这里观看演示

Answer 2

如果你的初始数组被称为 $source ，这应该可以做到：

$result =[]; //final array
foreach($source as $data){
    $type = key($data); //eg: 'Candidate' or 'User'
    if(!isset($result[$type])) $result[$type]=[];
    $result[$type][] = reset($data);
}

在这里演示