KsortRecursive.php

<?php
class KsortRecursive
{
  protected function ksortRecursive(array $array)
  {
    foreach ($array as $key => $nestedArray) {
        if (is_array($nestedArray) && !empty($nestedArray)) {
            $array[$key] = $this->ksortRecursive($nestedArray);
        }
    }

    ksort($array);

    return $array;
  }
}
?>