как упростить ссылку? - [VM1] Общие вопросы и ошибки

	$url_parameters = "page=shop.product_details&flypage=$flypage&product_id=" . $db_browse->f("product_id"). "&category_id=" . $db_browse->f("category_id");
	vmRedirect( $sess->url($url_parameters, true, false ) );

/*** Start printing out all products (in that category) ***/
	while ($db_browse->next_record()) {
		// If it is item get parent:
		$product_parent_id = $db_browse->f("product_parent_id");
		if ($product_parent_id != 0) {
			$dbp->query("SELECT product_full_image,product_thumb_image,product_name,product_s_desc FROM #__{vm}_product WHERE product_id='$product_parent_id'" );
			$dbp->next_record();
		}
		// Set the flypage for this product based on the category.
		// If no flypage is set then use the default as set in virtuemart.cfg.php
		$flypage = $db_browse->sf("category_flypage");

		if (empty($flypage)) {
            $flypage = FLYPAGE;
        }
        $url_parameters = "page=shop.product_details&flypage=$flypage&product_id=" . $db_browse->f("product_id"). "&category_id=" . $db_browse->f("category_id");

$url_parameters = "page=shop.product_details&flypage=$flypage&product_id=" . $db_browse->f("product_id"). "&category_id=" . $db_browse->f("category_id");

$url_parameters = "page=shop.product_details&product_id=" . $db_browse->f("product_id");