数组搜索并在PHP中组合

Question

I have 2 arrays. Is it possible to create output array and add keys/values from first to the second one? My arrays looks like:

The first:

 Array
    (
        [0] => Array
            (
                [id] => 11
                [expire] => undefined
            )

        [1] => Array
            (
                [id] => 12
                [expire] => undefined
            )

        [2] => Array
            (
                [id] => 6
                [expire] => 8
            )

        [3] => Array
            (
                [id] => 10
                [expire] => 4
            )
    )

The second:

Array
    (
        [0] => Array
            (
                [id] => 6
                [realname] => to_es.gif
                [extension] => gif
                [filesize] => 57885
            )

        [1] => Array
            (
                [id] => 10
                [realname] => to_joomla_2_customer_view.gif
                [extension] => gif
                [filesize] => 77182
            )

        [2] => Array
            (
                [id] => 11
                [realname] => to_nl.gif
                [extension] => gif
                [filesize] => 10990
            )

        [3] => Array
            (
                [id] => 12
                [realname] => to_PL_1.gif
                [extension] => gif
                [filesize] => 52826
            )

    )

How I'm getting the output array:

 Array
        (
            [0] => Array
                (
                    [id] => 6
                    [realname] => to_es.gif
                    [extension] => gif
                    [filesize] => 57885
                    [expire] => 8
                )

            [1] => Array
                (
                    [id] => 10
                    [realname] => to_joomla_2_customer_view.gif
                    [extension] => gif
                    [filesize] => 77182
                    [expire] => 4
                )

            [2] => Array
                (
                    [id] => 11
                    [realname] => to_nl.gif
                    [extension] => gif
                    [filesize] => 10990
                    [expire] => undefined
                )

            [3] => Array
                (
                    [id] => 12
                    [realname] => to_PL_1.gif
                    [extension] => gif
                    [filesize] => 52826
                    [expire] => undefined
                )

        )

Answer 1

Try this:

function my_array_merge($first,$second) {
    $new = array();
    foreach ($first as $f_item) {
        foreach ($second as $i => $s_item) {
            if ($f_item['id']===$s_item['id']) {
                $new[] = $f_item + $s_item;
                unset($second[$i]);
                break;
            }
        }
    }
    usort($new, function($a,$b) {
        return $a['id'] - $b['id'];
    });
    return $new;
}

Example on Ideone: http://ideone.com/TQIIkH