多维数组值与另一个索引数组值匹配，然后在PHP 7中从多维值中删除值

Question

我有两个数组以下

    $firstArray = Array
(
    [1] => Array
        (
            [MemberList] => Array
                (
                    [0] => 100
                    [1] => 5d6
                    [2] => 5d7
                )
        )
    [3] => Array
        (
            [MemberList] => Array
                (
                    [0] => 5d8
                    [1] => 200
                )
        )
)


$secondArray = Array
(
    [0] => 100
    [1] => 200
)

我的问题是，假设$secondArray数组值与$firstArray数组匹配，那么我必须从$firstArray中删除值

我的预期输出

$firstArray = Array
(
    [1] => Array
        (
            [MemberList] => Array
                (
                    [0] => 5d6
                    [1] => 5d7
                )
        )
    [3] => Array
        (
            [MemberList] => Array
                (
                    [0] => 5d8
                )
        )
)

Answer 1

$newArray = array_map(
    function ($v) use ($secondArray) { 
        return ['MemberList' => array_diff($v['MemberList'], $secondArray)]; 
    }, 
    $firstArray
);

小提琴here。

Answer 2

您可以在这里使用递归；请参阅内联文档。

function custom($firstArray, $secondArray) {
    foreach ($firstArray as $key => $value) {
        if (is_array($value)) {
            // check if value still got array if so, callback
            $firstArray[$key] = custom($value, $secondArray);
        }else{
            // if got value as leaf then check with secondArray, if exist unset,
            if(in_array($value,$secondArray)){
                unset($firstArray[$key]);
            }
        }
    }
    return $firstArray;
}

Demo
输出
Array
(
    [1] => Array
        (
            [MemberList] => Array
                (
                    [1] => 5d6
                    [2] => 5d7
                )

        )

    [3] => Array
        (
            [MemberList] => Array
                (
                    [0] => 5d8
                )

        )

)