Naturally sort a multi-dimensional array by key

Question

I have a multidimensional array in php, and I want to naturally sort the array based on key value. The array in question: ``` array(27) { ["user1"]=> array(1) { ["link"]=> string(24) "http://twitch.tv/example" } ["someotheruser"]=> array(1) { ["link"]=> string(24) "http://twitch.tv/example" } ["anotheruser"]=> array(1) { ["link"]=> string(24) "http://twitch.tv/example" } // etc... } ``` I have attempted a few things so far, but I am having no luck. Using `uksort` with natsort doesn't work, and I don't want to have to go as far as writing a custom comparator for natural sorting order if I don't have to. I also attempted sorting the keys individually, however that seemed to not work ``` private function knatsort(&$array) { $keys = array_keys($array); natsort($keys); $new_sort = array(); foreach ($keys as $keys_2) { $new_sort[$keys_2] = $array[$keys_2]; } $array = $new_sort; return true; } ```

Accepted Answer

Something simpler. Extract the array keys and sort those, sorting the original by that:

```
array_multisort(array_keys($array), SORT_NATURAL, $array);
```

With case insensitivity:

```
array_multisort(array_keys($array), SORT_NATURAL | SORT_FLAG_CASE, $array);
```

Naturally sort a multi-dimensional array by key

Solution

Problem