function execute() { global $osC_Session, $osC_ShoppingCart, $osC_Product; if (!isset($osC_Product)) { $id = false; foreach ($_GET as $key => $value) { if ((is_numeric($key) || ereg('^[a-zA-Z0-9 -_]*$', $key)) && $key != $osC_Session->getName()) { $id = $key; } break; } if ($id !== false && osC_Product::checkEntry($id)) { $osC_Product = new osC_Product($id); } } if (isset($osC_Product)) { if ($osC_Product->hasVariants()) { if (isset($_POST['variants']) && is_array($_POST['variants']) && !empty($_POST['variants'])) { if ($osC_Product->variantExists($_POST['variants'])) { $osC_ShoppingCart->add($osC_Product->getProductVariantID($_POST['variants'])); } else { osc_redirect(osc_href_link(FILENAME_PRODUCTS, $osC_Product->getKeyword())); return false; } } else { osc_redirect(osc_href_link(FILENAME_PRODUCTS, $osC_Product->getKeyword())); return false; } } else { $osC_ShoppingCart->add($osC_Product->getID()); } } osc_redirect(osc_href_link(FILENAME_CHECKOUT)); }