public function uri($uri = NULL): string {
        if ($uri === NULL) {
            return empty($this->_uri) ? '/' : $this->_uri;
        }

        return $this->_uri = $uri;
    }
public function uri($uri = NULL): string {
        if ($uri === NULL) {
            return empty($this->_uri) ? '/' : $this->_uri;
        }

        return $this->_uri = $uri;
    }
public function uri ( $ uri = NULL ) : string { if ( $ uri === NULL ) { return empty ( $ this -> _uri ) ? '/' : $ this -> _uri ; } return $ this -> _uri = $ uri ; }
Sets and gets the uri from the request.

@param   string $uri
@return  string
Sets and gets the uri from the request .