Cml\Cache\File::decrement PHP Метод

    public function decrement($key, $val = 1)
    {
        $this->lock = true;
        $v = $this->get($key);
        if (is_int($v)) {
            return $this->update($key, $v - abs(intval($val)));
        } else {
            return false;
        }
    }