Imdb\Title::yearspan PHP Метод

    function yearspan()
    {
        if (empty($this->main_yearspan)) {
            $this->getPage("Title");
            if (preg_match('!<title>.*?\\(.*?(\\d{4})(\\&ndash;|\\xe2\\x80\\x93|-)(\\d{4}|\\?{4}).*?</title>!i', $this->page['Title'], $match)) {
                $this->main_yearspan = array('start' => $match[1], 'end' => $match[3]);
            } else {
                $this->main_yearspan = array('start' => $this->year(), 'end' => $this->year());
            }
        }
        return $this->main_yearspan;
    }