Hi, Am i web developer am working of a php project which require a form of online payment method, so now my issue is that when a user wants to pay he will be give his transaction ID from the site before been redirected to paypal for payment. so my issue is how can i track that the payment, and when its done knowing that paypal will redirect the user bank to my site success page, how can i add his transaction id as POST data or any other method possible for tracking payment, PLEASE HELP
