Are you working for e-commerce project? Then you should have a better and secure payment system. I suggest you setup you project with BrainTree API, it is very powerful and quick. This is accepting most commonly used Cards, PayPal, Android Pay and etc. This post will explain you how to design a cart and order system with BrainTree payment process using PHP and MySQL. Take a quick look the live demo and try demo transaction.

I had received a comment on my previous post Payment system with Paypal about injecting wrong product price values via third party site using FORM, this is a valid point. So that I had updated my previous post code “success.php” re-confirming the product price details before payment success message and added new field class ‘currecy type’ on “products” table.

I received a tutorial requests from my reader that asked to me how to implement payment gateway system with Paypal API. In this post I want to explain how to work with Paypal Sandbox test accounts for payment system development and sending arguments while click buy now button. It’s simple and very easy to integrate in your web projects.