Hello I need some help please!
I have a web page that currently inserts a record containing customerID, productID and quantity into the cart table if a user adds a product to their cart. However, if the user goes back to the shop and re-adds that same product to their cart. The php/mysql creates a new record regardless of what they have in their cart.
Current output in table:
customerID productID quantity
1 ABC12 3
1 ABC12 1
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