I don't see it adding two songs at a time and I've tested that thoroughly. When a user clicks the button ( add to cart ), it takes the info from the SONGLIST table and adds those fields to the CART table.
I'm embarrassed to answer your next question...
I don't know how to make sessions or cookies... I did the app through phpRad interface. When a user chooses a song, that song is added to a table called CART. If they sign off and come back later, that info is still in the CART table. I pull it based on ACTIVE USER.
I love the suggestion you made and I'm going to try that right now... I have to figure out where to do that in phpRad..... Are you familar with it...
I'm new to phpRad and have been doing well until I hit this issue. I have been able to setup my app to search artist, title, song category, and album successfully. I have also been able to setup the cart to work as well. My problem is, I can't finish the cart to deliver the mp3 to my clients. My deadline is coming and I don't know what to do.... PLEASE POINT ME IN THE RIGHT DIRECTION...
Summary - I need to automate my users to receive their mp3 files when they pay for them using Square.