parse_request example

    public function main( $query_args = '' ) {
        $this->init();

        $parsed = $this->parse_request( $query_args );

        if ( $parsed ) {
            $this->query_posts();
            $this->handle_404();
            $this->register_globals();
        }

        $this->send_headers();

        /** * Fires once the WordPress environment has been set up. * * @since 2.1.0 * * @param WP $wp Current WordPress environment instance (passed by reference). */