title: Twig: Access a parameters in url
body: <p>suppose I have this symfony url: http:/www.site.com/page/parameter</p>
  
  <p>How can I access "parameter" in twig? I mean, the conversion of $this->getPageParams() in symfony repository.</p>
  
  <p>I don't want to explode the url or similar, it's too weird.</p>
  
  <p>Thanks!</p>