I'm looking at integrating my custom shopping cart to the paypay payment gateway using Instant Payment Notification.
Has anyone got any sample code, I'm using php.
I need a few things clarified that I can't find on the paypal support docs.
Basically, my shopping cart produces an array for each Item (ID, Price, Name etc...)
what is the best way to integrate this with IPN, and what are the minimum variables paypal requires?
Any help is much appreciated.