Send WhatsApp Messages from PHP - Complete Guide

Automate WhatsApp messaging using PHP and the WhatsMate WA Gateway REST API

Posted on February 20, 2016   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: January 28, 2026  

🚀 Automate WhatsApp Messaging with PHP

Looking to integrate WhatsApp messaging into your PHP web applications? This guide walks you through sending WhatsApp messages using PHP and the WhatsMate WA Gateway REST API. Perfect for web developers building customer portals, notification systems, or automated messaging features for websites.

📋 Prerequisites

Before you begin, ensure you have:

  1. A WhatsMate WA Gateway account - Required for API access
  2. Recipient registration - Each recipient must register with the Gateway first
  3. PHP environment - PHP 7.0 or higher with cURL support
  4. Web server - Apache, Nginx, or similar to serve PHP pages
  5. Basic PHP knowledge - Familiarity with PHP scripting and web development

⚠️ Important: Recipients must register with the WhatsMate WA Gateway before they can receive messages. Unregistered users will not receive any messages from the Gateway. Registration instructions are available on the official WhatsMate site.

🎥 Video Walkthrough

📝 Step-by-Step Implementation

Follow these steps to send your first WhatsApp message from a PHP application:

1. Copy the PHP Template

Start by copying the following source code into a PHP file (e.g., send-whatsapp.php):

2. Configure a few Parameters

Customize these key parameters in the PHP script:

  • Line 2: Replace with your gateway instance ID
  • Lines 3-4: Update with your Client ID and Secret
  • Line 7: Specify the target phone number (including the country code, e.g., 12025550108)
  • Line 8: Provide your message content

3. Send Your Message

Access the PHP page through your web browser to deliver your WhatsApp message:

http://your-domain.com/send-whatsapp.php

🔧 Common Use Cases

This PHP integration approach is ideal for:

  • Web applications - Send notifications from customer portals or dashboards
  • E-commerce platforms - Automate order confirmations and shipping updates
  • Content management systems - Notify administrators about new content or comments
  • Form submissions - Send WhatsApp confirmations after form completion

🚀 Get Started Today

Ready to integrate WhatsApp messaging into your PHP applications? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending messages within minutes!

Next Steps: Once you’ve mastered basic message sending, explore advanced features like sending images, documents, or group messages through the WhatsMate API documentation.