I have an app where I want users to be able to buy in-game credits called coins.
I have set my callback url, and can make a purchase, I get an order_id and settled from the callback, but how do I update the users row in my mySql database after they have made the purchace.
Kinda how my mySql DB looks
ID......FBID............Name..........Coins
7.......1000***797....John..............0
After the user has bought 200 coins for 1 credit, I would like to do this
$SQL = "UPDATE tb_users SET Coins = Coins+200 WHERE FBID = '$usernumber'"; $result = mysql_query($SQL);
But how and where am I supposed to do that? Is it in the callback.php file or in the index.php file after "var callback = function(data)".
I can't seem to pass the user_id from the form on the index to callback.php
So how do I do that, and if that is possible, am I supposed to update my database in the callback.php file??