在随机/动态数组中按键搜索值

Question

搜索多维数组的最佳方法是关键。 喜欢

Array
(
    [items] => Array
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [item1] => Array
                                (
                                    [item] => a
                                    [url] => xys.com
                                )

                        )

                )

            [1] => Array
                (
                    [1] => Array
                        (
                            [item2] => Array
                                (
                                    [url] => xys.com
                                    [count] => 5
                                )

                        )

                )

            [2] => Array
                (
                    [2] => Array
                        (
                            [item3] => Array
                                (
                                    [url] => abc.com
                                    [count] => 5
                                )

                        )

                )

            [3] => Array
                (
                    [3] => Array
                        (
                            [item4] => Array
                                (
                                    [meta] => b
                                    [count] => 5
                                )

                        )

                )

            [4] => Array
                (
                    [4] => Array
                        (
                            [item5] => Array
                                (
                                    [url] => abc.com
                                    [count] => 5
                                )

                        )

                )

        )

)

我想获取第一次出现或键“URL”的值，值应为“xys.com”

数组可能是随机/动态的，所以我不能使用它的密钥迭代它，我只想让它按第一次出现的密钥进行搜索

谢谢

Answer 1

我找到了解决方案，这个功能适用于上面的例子：

function searchArrayValueByKey(array $array, $search) {
foreach (new RecursiveIteratorIterator(new RecursiveArrayIterator($array)) as $key => $value) {
    if ($search === $key)
    return $value;
}
return false;
}