code: public function parseBotNames() {
      $dom = $this->getDom('https://udger.com/resources/ua-list/crawlers');
  
      if (false === $dom) {
        throw new Exception("Fail to load bot list DOM.", E_WARNING);
      }
  
      $crawler = new Crawler();
      $crawler->addContent($dom);
      $crawler->filter('body #container table tr td > a')->each(function($node, $i) {
        $botName = $node->text();
        $this->addBotName($botName);
      });
    }
docs: Find bot names in the given DOM
  
  @param  [type] $dom [description]
  @return void