public function getPathInfo()
    {
        if ($this->pathInfo === null) {
            $end = strpos($this->uri, '?');

            if ($end === false) {
                $this->pathInfo = $this->uri;
            }else{
                $this->pathInfo = substr($this->uri, 0, $end);
            }

            if (empty($this->pathInfo)) {
                $this->pathInfo = '/';
            }
        }
        
        return $this->pathInfo;
    }