Strip param from URL

gistfile1.txt

 /**
     * Strip referer param from URL.
     *
     * @param string $request_uri
     *
     * @return string
     */
    public function get_url_without_referer( $request_uri ) {

        $path         = parse_url( $request_uri, PHP_URL_PATH );
        $query_string = parse_url( $request_uri, PHP_URL_QUERY );

        parse_str( $query_string, $output );

        unset( $output['referer'] );

        $query_string = urldecode( http_build_query( $output ) );

        return get_home_url( null, $path . '?' . $query_string );
    }