Tuesday, October 13, 2020

How to Integrate PayPal with PHP and MySQL



Hello folks! welcome to another edition of my tutorial on PHP. In this tutorial, we are going to be discussing about how to integrate Paypal with PHP and MySQL.

What is Paypal?

Paypal is a payment processing system, we can integrate Paypal with websites by using PHP.

Paypal Integration File System

Paypal integration file system is comprised of four files as seen below -

  • constants.php - This file has included the API user name, password and signature.
  • CallerService.php - This file has incorporated the Paypal services, used for calling the Paypal services.
  • confirmation.php - This file has added a PHP form with minimum fields required to make payment process and it is going to return payment success or failure.
  • Paypal_entry.php - This file is used for sending the user data to Paypal. It acts as an adapter between Paypal and user form.


The user first has to download a Paypal SDK file making use of the provided link and extract the zip file. The zip file contains four php files. We are not required to make changes to any of the file except constants.php.

The constants.php file contains the following code below -

<?php
   define('API_USERNAME', 'YOUR USER NAME HERE');
   define('API_PASSWORD', 'YOUR PASSWORD HERE');
   define('API_SIGNATURE', 'YOUR API SIGNATURE HERE');
   define('API_ENDPOINT', 'https://api-3t.paypal.com/nvp');
   define('USE_PROXY',FALSE);
   define('PROXY_HOST', '127.0.0.1');
   define('PROXY_PORT', '808');
   define('PAYPAL_URL', 'https://www.PayPal.com/webscr&cmd=_express-checkout&token=');
   define('VERSION', '53.0');
?>

The user will declare a Username, Password and Signature in the above syntax which are placed in constants.php. This involves an experimental example so the last amount will be added to sandbox's account.


Alright guys! This is where we are rounding up for this tutorial post. In my next tutorial guide, we are going to be discussing about PHP MySQL Login.

Feel free to ask your questions where necessary and i will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

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Thanks for reading and bye for now.
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