Detailed explanation of the steps of PHP public account WeChat payment development flow chart

In today's digital world, more and more companies and organizations have moved their products or services to the Internet, and the convenience, speed and security of mobile payments have become part of business competitiveness. As one of the important forms of mobile payment, WeChat Pay occupies a high market share in the Chinese market. Its convenience makes more and more companies and individuals choose WeChat Pay.

Among PHP programmers or PHP developers, because it is often used in website or server development, it is natural to have contact with WeChat Pay. So, this article will provide a simple overview and explanation of the steps for PHP programmers to develop WeChat payment in public accounts to help them successfully implement WeChat payment in their projects.

The following is a step-by-step illustration of the PHP public account WeChat payment development process:

1. First, you need to register your merchant account in the WeChat merchant platform.
2. Then, you need to create a public account in the WeChat public platform. If you already have one, skip this step.
3. Set relevant parameters on the intermediary platform, including merchant number, API key, etc. You need to be careful not to give away the API key here.
4. Call the WeChat payment API in the PHP program to obtain the necessary parameters for payment, such as merchant order number, product information, etc.
5. Generate a signature. The generated signature needs to be used for subsequent calls to the WeChat Pay API.
6. Call the WeChat payment API, send the generated parameters and signature to the WeChat payment server, and obtain the payment QR code or the URL of other payment methods.
7. Send the payment QR code or the URL of other payment methods to the user, and the user uses the WeChat App to scan the code or use WeChat to pay on the WeChat H5 page.
8. In the callback interface of the WeChat payment server, receive the payment result and verify the returned data to ensure the validity and security of the payment.
9. If the payment is successful, the payment result will be written to the database for recording, and payment success information will be returned to the user, otherwise payment failure information will be returned.

The above are the basic steps of the PHP public account WeChat payment development flow chart. I hope it can provide some help and reference for PHP programmers or PHP developers when developing WeChat payment in the public account.

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