从具有匹配值php的多维数组中获取特定数组

Question

I have 2 arrays -

$array1 =
Array
(
    [0] => Array
        (
            [user_id] => 2
            [like_status] => 1
        )

    [1] => Array
        (
            [user_id] => 3
            [like_status] => 1
        )

)

$array2 = 

Array
(
    [isLoggedIn] => 1
    [userId] => 3
)

My requirement is I want to fetch the array where userId = 3. There can be multiple records in $array1 But I only want to fetch the array which have userID = 3, which is in $array2

I am able to get into the condition and match but not able to fetch.

if(array_search($array2['userId'], array_column($array1, 'user_id')) !== False) {
                                print_r($array1);
                            }

But it should only return the specific array.

Answer 1

One method is to create a flat array of the userid and use array_intersect to get the matching full arrays.

$userids = array_column($array1, "user_id");
$matching = array_intersect_key($array1, array_intersect($userids, [$array2['user_id']]));

Now $matching will be all the $array1 subarrays where userid is matching $array2['userId'].