PHP比較兩個多維數組

Question

我有兩個這樣的多維數組：Guest allow array

Array
(
    [0] => 5
    [1] => 2
    [2] => 3
)

第二個像這樣

   Array
(
    [0] => Array
        (
            [property_id] => 6
            [guest_allow] => 2
        )

    [1] => Array
        (
            [property_id] => 9
            [guest_allow] => 3
        )

    [2] => Array
        (
            [property_id] => 62
            [guest_allow] => 2
        )

    [3] => Array
        (
            [property_id] => 72
            [guest_allow] => 3
        )

    [4] => Array
        (
            [property_id] => 76
            [guest_allow] => 4
        )

    [5] => Array
        (
            [property_id] => 80
            [guest_allow] => 5
        )

    [6] => Array
        (
            [property_id] => 84
            [guest_allow] => 3
        )
)

因此，我必須匹配guest guest_allow數組，所有值都出現在第二個數組中，並且我必須檢查guest guest_allow值是否小於guest_allow第二個數組。 如果不匹配單個值，則返回空數組。 如果匹配值，則僅返回匹配值。 我想要這樣的返回數組：

       Array
(
    [0] => Array
        (
            [property_id] => 6
            [guest_allow] => 2
        )

    [1] => Array
        (
            [property_id] => 9
            [guest_allow] => 3
        )

    [2] => Array
        (
            [property_id] => 62
            [guest_allow] => 2
        )

    [3] => Array
        (
            [property_id] => 72
            [guest_allow] => 3
        )

    [4] => Array
        (
            [property_id] => 84
            [guest_allow] => 3
        )
    [5] => Array
        (
            [property_id] => 76
            [guest_allow] => 4
        )
)

是否可以返回此類型數組？ 謝謝。

Answer 1

假設$guestArr是您的來賓數組，而$secondArr是您的第二個數組，則解決方案將如下所示：

foreach($secondArr as $key => $arr){
    if(!in_array($arr['guest_allow'], $guestArr)){
        unset($secondArr[$key]);
    }
}

// display $secondArr array
var_dump($secondArr);

這是現場演示 。

Answer 2

$first = [1, 2, 3];
$second = [
    ['property_id' => 6, 'guest_allow' => 2],
    ['property_id' => 66, 'guest_allow' => 3],
    ['property_id' => 76, 'guest_allow' => 4],
    ['property_id' => 86, 'guest_allow' => 2]
];

$result = array_filter($second, function($el) use ($first) {
    return in_array($el['guest_allow'], $first);
});