php - The app calls up WeChat payment and prompts the merchant that the payment order ID is illegal.

Question

What's going on, Master! Or someone who knows thinkphp 3.2.3 and knows how to integrate WeChat payment can tell me how to integrate the backend

Answer 1

Check the signature before authentication to see if there is any problem.

Answer 2

The backend only needs to generate the order parameters, and return the xml parameters to the app for calling

Answer 3

Brother, what is the reason for this? I encountered it too