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Pesapal PHP SDK

The Pesapal PHP SDK provides a simple and efficient way to integrate the Pesapal Payment Gateway into your PHP application. This SDK handles authentication, order submission, transaction status checks, recurring payments, and refunds, making it easier for developers to interact with Pesapal's API 3.0.

Table of Contents

• Pesapal PHP SDK
  • Table of Contents
  • Features
  • Requirements
  • Installation
  • Configuration
  • Usage
  • Authentication
  • Important Notice: IPN Registration
  • Register IPN URL
  • Submit Order
  • Get Transaction Status
  • Recurring Payments
  • Refund Request
  • Get Transaction Status
  • Tutorials and Guides
  • Testing Environment Setup
  • License

Features

• Authentication: Obtain and manage access tokens using your Pesapal consumer_key and consumer_secret.
• IPN Registration: Register Instant Payment Notification (IPN) URLs to receive real-time transaction status updates.
• Order Submission: Create and submit payment requests to Pesapal.
• Transaction Status: Check the status of transactions using the OrderTrackingId.
• Recurring Payments: Set up and manage subscription-based payments.
• Refunds: Request refunds for completed transactions.

Requirements

• PHP 8.0 or higher
• Composer
• cURL extension enabled
• An active Pesapal merchant account with consumer_key and consumer_secret
• A sandbox keys file for testing, provided in the project as pesapal_sandbox_keys.json. This file contains test keys for different merchant regions (e.g., Kenya, Uganda, Tanzania). You can find the file in the root directory of the project.

Installation

Use Composer to install the Pesapal PHP SDK:

Configuration

1. Clone the Repository (if not using Composer):

2. Install Dependencies:

   Navigate to the project directory and install dependencies:

3. Set Up Environment Variables:

   • Copy the .env.example file to .env:

   • Open the .env file and set your Pesapal consumer_key and consumer_secret:

4. Ensure pesapal_dynamic.json is Writable:

   The SDK uses pesapal_dynamic.json to store the access_token and other dynamic data. Make sure this file is writable by your application.

Usage

Authentication

The SDK automatically handles authentication with Pesapal. Upon initialization, the SDK retrieves the access_token using your configured consumer_key and consumer_secret. The token is valid for 5 minutes and is securely stored in pesapal_dynamic.json.

You don't need to manually request or manage the access_token; the SDK ensures it is always available and refreshed as needed for API calls.

How it Works:

1. When you make an API call, the SDK checks for a valid access_token in pesapal_dynamic.json.
2. If the token is expired or unavailable, the SDK automatically re-authenticates with Pesapal and updates pesapal_dynamic.json.

Important Notice: IPN Registration

Before initiating any transactions, it is mandatory to register an IPN (Instant Payment Notification) URL. This allows your application to receive real-time updates on payment status, such as successful payments, failures, or reversals.

But here's where this SDK shines: it automatically handles IPN registration smartly based on your environment (sandbox or production) — making it easier to avoid common mistakes.

🔍 How IPN Registration Works Behind the Scenes

When the SDK initializes (e.g., via submit_order.php or register_ipn.php), it follows this logic:

1. Reads pesapal_dynamic.json to load your previously registered IPN URL and notification_id.
2. Checks if the current environment (sandbox or production) matches the token_env (also saved in pesapal_dynamic.json).

3. If the environment has changed, or if the IPN URL does not match what Pesapal has on record, it:

   • Automatically registers the correct IPN URL with Pesapal for the active environment using the already available IPN URL in your pesapal_dynamic.json.

   • Updates the file pesapal_dynamic.json with the new notification_id, access_token, and environment tag (token_env).
4. You don’t need to manually update this again – it’s handled for you.

🛠️ Configure for Sandbox or Production

At the top of each example (e.g., register_ipn.php, submit_order.php), you’ll find this block:

Switch to production like this:

✅ What You Need to Do

• Set your environment (sandbox or production)
• Ensure your .env file has the correct keys
• Let the SDK handle the rest: it will verify and register your IPN URL automatically.

Why This Matters:

Pesapal assigns different notification IDs depending on the environment. If you use a sandbox notification_id in production (or vice versa), your payment callbacks may fail. This SDK prevents that error for you.

Register IPN URL

Refer to: example/register_ipn.php

This script demonstrates how to register an IPN URL and retrieve the notification_id required for all transactions.

Submit Order

• File Location: example/submit_order.php

See usage section for code sample…

Get Transaction Status

Recurring Payments

• File Location: example/recurring_order.php

See usage section for code sample…

Refund Request

• File Location: example/RefundTransactionHandler.php

See usage section for code sample…

Get Transaction Status

• File Location: example/transaction_helpers.php

See usage section for code sample…

Tutorials and Guides

Embark on your journey with the Pesapal PHP SDK through our exclusive tutorials and guides:

• Installing Pesapal SDK: Kickstart Your Payment Integration
• Mastering Pesapal SDK: Unlock Advanced Payment Features

Testing Environment Setup

For testing and development purposes, utilize the test cards provided by Pesapal at the following URL:

https://cybqa.pesapal.com/PesapalIframe/PesapalIframe3/TestPayments

License

This project is licensed under the MIT License - see the LICENSE file for details.

Disclaimer: This SDK is not an official Pesapal product. It's an independent project aimed at simplifying Pesapal API integration for PHP developers. For any issues related to the Pesapal API itself, please contact Pesapal Support.