protected static function _parseCronNumbers($s, $min, $max)
    {
        $result = array();
        $v = explode(',', $s);
        foreach ($v as $vv) {
            $vvv = explode('/', $vv);
            $step = empty($vvv[1]) ? 1 : $vvv[1];
            $vvvv = explode('-', $vvv[0]);
            $_min = count($vvvv) == 2 ? $vvvv[0] : ($vvv[0] == '*' ? $min : $vvv[0]);
            $_max = count($vvvv) == 2 ? $vvvv[1] : ($vvv[0] == '*' ? $max : $vvv[0]);
            for ($i = $_min; $i <= $_max; $i += $step) {
                $result[$i] = intval($i);
            }
        }
        ksort($result);

        return $result;
    }