php - array_combine 或 array_merge？

Question

我敢肯定这对于精通 php 的人来说很容易，但我犯了一个错误，使我的大脑重载，所以现在我真的很困惑是否应该使用 array_combine、array_merge 或其他东西...我已经用谷歌搜索和阅读 php.net 4 个小时了，我想我只是让自己更加困惑...

本质上，我只是想在保留键的同时组合一个数组？

//Here are the original arrays
[field_sreference] => Array
    (
        [0] => Array
            (
                [nid] => 28
            )

        [1] => Array
            (
                [nid] => 28
            )

        [2] => Array
            (
                [nid] => 29
            )
    )

[field_idelta] => Array
    (
        [0] => Array
            (
                [value] => 0
            )

        [1] => Array
            (
                [value] => 1
            )

        [2] => Array
            (
                [value] => 0
            )
    )

[field_iswitch] => Array
    (
        [0] => Array
            (
                [value] => 0
            )

        [1] => Array
            (
                [value] => 0
            )

        [2] => Array
            (
                [value] => 0
            )
    )

//Here is what I'm trying to achieve:

[combinedarray] => Array
        (
            [0] => Array
                (
                    [nid] => 28
                    [idelta] => 0
                    [iswitch] => 0

                )

            [1] => Array
                (
                    [nid] => 28
                    [idelta] => 1
                    [iswitch] => 0
                )

            [2] => Array
                (
                    [nid] => 29
                    [idelta] => 0
                    [iswitch] => 0
                )
        )

Answer 1

你可以通过简单地迭代数组来解决这个问题是 O(n)...

$combinedarray = array();
$len = count($field_sreference);
for ($i = 0; $i < $len; $i++) {
    $combinedarray[] = array("nid" => $field_sreference[$i]['nid'], 
                             "idelta" => $filed_idelta[$i]['value'], 
                             "iswitch" => $field_iswitch[$i]['value']);
}

这假设 3 个数组的长度都相等。