How To Count The Number Of PRODUCTS Bought In A Cart.
A shopping cart has a table called "cart" where the customer's selections are stored.
The customer buys 1 item of Product C, 2 items of Product H and 3 items of Product T.
I need to be able to count the number of PRODUCTS bought NOT the number of items. i.e. the answer here is 3.
What is the EASIEST way to do this?
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