Actually I have worked this out by looking at one of your other threads:
PHP Code:
$chk_products += $_SESSION['cart']->in_cart_check('products_id','360');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','361');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','362');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','363');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','348');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','352');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','369');
$chk_products += $_SESSION['cart']->in_cart_check('products_id','367');
My burning question now, is can flat rate be added to if more than 1 product id listed is bought? So if Product ids 360 and 361 are bought together, how can we total the flat rate to £100?
Please advise.