function follow_location()
      {
          if (preg_match("#(location|uri):([^\r\n]*)#i", $this->response\_headers,$matches))
          {
              $uri\; =$this->decode_url(trim($matches[2]));\; if\; (!preg\_match(\text{'}\#^[\backslash w+.-]+:$//#i', uri))
              {
                  if (substr($uri,\; 0,\; 1)\; ==\; \text{'}/\text{'})\; \{$uri = $this->url\_segments[\text{'}scheme\text{'}]\; .\; \text{'}://\text{'}\; .$this->url_segments['host'] . $uri;\; \}\; else\; \{$uri = $this->url\_segments[\text{'}prefix\text{'}]\; .\; \text{'}/\text{'}\; .$uri;
                  }
              }
  
              $this->url\; =$uri;
              return true;
          }
          return false;
      }