PHP: $base_dir (root folder of your shop) $base_dir_ssl (root folder of your shop using HTTPS protocol) $content_dir (root folder of your shop depending on the SSL settings) $img_ps_dir (root folder containing images "/img/") $img_dir (images folder in your current theme directory) $css_dir (css folder inside the current theme folder) $js_dir (JavaScript folder inside the theme folder) $tpl_dir (theme root folder) $modules_dir (modules root folder) $mail_dir (mail templates root folder) $lang_iso (current language ISO code) $come_from (previous page address [absolute]) $shop_name (your specified shop name) $cart_qties (total number of products in the cart) $cart (shopping cart contents) $currencies (pulls available currencies)