I have a php web site (in progress) where you when you make a purchase it adds credits to your user account. Both Paypal and Amazon worked successfully. However, in the course of working on the site over time, I re-tested yesterday and Amazon purchases add credits, but for some reason Paypal purchases do not. After a purchase the user returns successfully to the site, but the credits are now not added to the user account.
I was told it's a paypal issue and was told to generate a txt file, from my paypal_ipn.php, to see what (or when) it is being called?
Can you tell me how to do this?
Thanks
