Prado\I18N\core\CultureInfo::simplify PHP Method

    private function simplify($array)
    {
        for ($i = 0, $k = count($array); $i < $k; ++$i) {
            $key = key($array);
            if (is_array($array[$key]) && count($array[$key]) == 1) {
                $array[$key] = $array[$key][0];
            }
            next($array);
        }
        return $array;
    }