PHP solution for automatic redirection of WeChat scan code payment: realizing a simple and efficient payment process

In this article, we will explore how to use PHP to implement a solution for automatic redirection of WeChat scan code payment. We will provide detailed steps and corresponding source code to help you quickly implement this feature.

1. Preparation
   Before you start writing code, you need to make sure that the following conditions are met:

• Have a valid WeChat merchant account and configured scan code payment function.
• A PHP environment is installed and configured, ensuring you can run PHP scripts on the server.
• Appropriate development tools, such as a text editor or integrated development environment, are installed.

2. Creating a payment request
   First, we need to create a request that contains payment parameters. These parameters will be used to generate the payment QR code and jump to the WeChat payment page. Here is a sample code:

<?php
$payUrl = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$merchantId = 'YOUR_MERCHANT_ID'; // 替换为您的商户ID