Question

I need to recursively reverse a HUGE array that has many levels of sub arrays, and I need to preserve all of the keys (which some are int keys, and some are string keys), can someone please help me? Perhaps an example using array_reverse somehow? Also, is using array_reverse the only/best method of doing this?

Thanks 🙂

Answer 1

Try this:

function array_reverse_recursive($arr) {
    foreach ($arr as $key => $val) {
        if (is_array($val))
            $arr[$key] = array_reverse_recursive($val);
    }
    return array_reverse($arr);
}