public function option($option, $mode = 'select')
    {
        // Case with comma-separated options
        if (is_string($option) && strpos($option, ',') !== false) {
            $option = explode(',', $option);
        }

        if (is_array($option)) {
            foreach ($option as $opt) {
                $this->args['option'][$mode][] = $opt;
            }

            return $this;
        }

        $this->args['option'][$mode][] = $option;

        return $this;
    }