EC-CUBE(2.11.4) Smartyパスでよく使う一覧です。

<!?{$TPL_URLPATH}?>
/html/user_data/packages/default/

<!?{$smarty.const.USER_TEMPLATE_REALDIR}?>
html/user_data/packages/

<!?{$smarty.const.TOP_URLPATH}?>
/html/

<!?{$smarty.const.ROOT_URLPATH}?>
/html/

<!?{$smarty.const.HTML_REALDIR}?>
/html/

<!?{$smarty.const.HTTP_URL}?>
http://～ドメイン～

<!?{$smarty.const.HTTPS_URL}?>
https://～ドメイン～

<!?{$smarty.const.P_DETAIL_URLPATH}?>
/html/products/detail.php?product_id=

<!?{$smarty.const.IMAGE_SAVE_URLPATH}?>
/html/upload/save_image/

<!?{$smarty.const.DATA_REALDIR}?>
/data/

<!?{$smarty.const.CLASS_REALDIR}?>
/data/class/

<!?{$smarty.const.CLASS_EX_REALDIR}?>
/data/class_extends/

<!?{$smarty.const.TEMPLATE_REALDIR}?>
/data/Smarty/templates/default/

<!?{$smarty.const.TEMPLATE_ADMIN_REALDIR}?>
data/Smarty/templates/admin/

<!?{$smarty.const.TEMPLATE_TEMP_REALDIR}?>
html/upload/temp_template/

<!?{$smarty.const.GRAPH_URLPATH}?>
/html/upload/graph_image/

<!?{$smarty.const.IMAGE_TEMP_URLPATH}?>
/html/upload/temp_image/

<!?{$smarty.const.CART_URLPATH}?>
/html/cart/

<!?{$smarty.const.ADMIN_LOGIN_URLPATH}?>
/html/shopmng/

<!?{$smarty.const.ADMIN_SYSTEM_URLPATH}?>
/html/shopmng/system/

<!?{$smarty.const.ADMIN_PRODUCTS_URLPATH}?>
/html/shopmng/products/

<!?{$smarty.const.ADMIN_ORDER_URLPATH}?>
/html/shopmng/order/

<!?{$smarty.const.MOBILE_IMAGE_URLPATH}?>
/html/upload/mobile_image/

<!?{$smarty.const.MOBILE_TOP_URLPATH}?>
/html/

<!?{$smarty.const.MOBILE_CART_URLPATH}?>
/html/cart/

<!?{$smarty.const.MOBILE_P_DETAIL_URLPATH}?>
/html/products/detail.php?product_id=

<!?{$smarty.const.DIR_INDEX_PATH}?>
index.php