Manually adding an item to the cart with $cart->add_cart

[TTYd]

Thanks for the previous help, think I just have one last question!

 

This is a simplified version of the scenario, but whenever the customer buys an item I want another item to be automatically added to the cart. I have experimented with adding

$cart->add_cart(35,1);

to application_top.php, which does indeed add pid35 to the cart, but it does not increment the quantity for each item that is ordered (there is only ever 1 in the cart). How does add_cart work exactly, is there a parameter that will do soemthing like;

$cart->add_cart(35,existing quantity+1)

so that each new item causes the number to increase?

 

Thanks in advance!

[TTYd]

Worked it out myself so this can be deleted.

$cart->add_cart(35, $cart->get_quantity('35')+1);