三维数组 如果一维是空 则去掉这个一维所在的二维数组。

Question

Array
(
    [0] => Array
        (
            [member_phone] => 13888888888
            [ru_order_id] => Array
                (
                )

            [order_id] => Array
                (
                )

            [core_order_id] => Array
                (
                    [0] => Array
                        (
                            [order_id] => 20200310183831111111

                        )

                )

        )

    [1] => Array
        (
            [member_phone] => 18888888888
            [ru_order_id] => Array
                (
                )

            [order_id] => Array
                (
                    [0] => Array
                        (
                            [order_id] => 20200307145555555555
                        )

                )

            [core_order_id] => Array
                (
                )

        )

    [2] => Array
        (
            [member_phone] => 17777777777
            [ru_order_id] => Array
                (
                )

            [order_id] => Array
                (
                )

            [core_order_id] => Array
                (
                )

        )

    [3] => Array
        (
            [member_phone] => 19999999999
                (
                )

            [order_id] => Array
                (
                )

            [core_order_id] => Array
                (
                    [0] => Array
                        (
                            [order_id] => 202003022222222222
                        )

                )

        )

    [4] => Array
        (
            [member_phone] => 12222222222
            [ru_order_id] => Array
                (
                )

            [order_id] => Array
                (
                )

            [core_order_id] => Array
                (
                )

        )

    [5] => Array
        (
            [member_phone] => 15555555555
            [ru_order_id] => Array
                (
                )

            [order_id] => Array
                (
                )

            [core_order_id] => Array
                (
                )

        )
                ）

我现在想要如果ru_order_id，order_id，core_order_id这三个值都是空的 那么我就把这条记录拿掉。如果这三个任何一个有值 则保留 我应该怎么做才能得到这个数组

Answer 1

foreach ($arr as $key => $item){
    $arr[$key] = array_filter($item,function($value){
        return !is_array($value) || !empty($value);
    });
}