php-examples | 2Checkout Payment API using the PHP library | Ecommerce library

The first thing that you will need to do is create a new directory to host this application, as well as two PHP files. We recommend calling the directory "payment-api" and the files "index.html" and "payment.php". For the remainder of this tutorial, we will be referring to the files and directory using this naming convention. 2Checkouts PHP library provides us with a simple bindings to the API, INS and Checkout process so that we can integrate each feature with only a few lines of code. In this example, we will only be using the Payment API functionality of the library, but for an example of the other features.you can view this tutorial: https://github.com/2Checkout/2checkout-ci-tutorial. Download or clone the 2Checkout PHP library at https://github.com/2checkout/2checkout-php. Including the library is as easy as copying contents of the lib directory into the 'payment-api' directory that we created earlier. We will need to reference this library in the payment.php file to be able to use it.