Add to Cart Function
You can add an item to the cart programmatically using the perch_shop_add_to_cart()
function:
perch_shop_add_to_cart(1234);
This can be useful if you’re not intending to expose the cart functionality to your users. For example, for a single product store you could automatically add your item and direct the user immediately into the checkout flow without them ever needing to know about a cart.