public function at($url)
    {
        $this->url = $url;
        $this->dom = $this->getDocument($url);

        return $this;
    }
public function at($url)
    {
        $this->url = $url;
        $this->dom = $this->getDocument($url);

        return $this;
    }
public function at ( $ url ) { $ this -> url = $ url ; $ this -> dom = $ this -> getDocument ( $ url ) ; return $ this ; }
Set the target url and get dom from this url.

@param string $url
@return $this
Set the target url and get dom from this url .