ZenPay is a complete PayPal payment integration solution developed in PHP that enables you to accept secure online payments through a streamlined checkout experience.

The solution handles the full PayPal payment lifecycle including order creation, payment approval, success confirmation, and cancellation handling. It ensures that payments are verified directly from PayPal before being marked as successful, providing an additional layer of security for transaction validation.

ZenPay is designed to work as a ready-to-use backend payment engine that simplifies how PayPal transactions are processed and confirmed. Instead of relying only on redirects or client-side confirmation, the system verifies payments using PayPal’s API after checkout completion.

Changelog

Version 1.0 – Initial Release

• Secure PayPal payment processing
• Server-side payment verification
• Success and cancellation flow handling
• Protected payment result pages
• Clean payment redirection
• Session-based payment validation
• Ready for multi-currency support
• Easy customization of payment amount

• PHP 8.2 or higher
• MySQL 5.x or MariaDB
• PayPal Developer Account
• PayPal REST API credentials

How to Test Payment:

• Login to your PayPal Developer Dashboard
• Create a Sandbox Business Account
• Create a Sandbox Personal Account
• Use the Personal Account to complete a test payment

Download the script and follow the included setup instructions to connect your PayPal API credentials.

Once configured, the system will automatically handle the payment flow. After payment is completed on PayPal, ZenPay verifies the transaction before confirming it as successful.