php - What does architectural middleware mean?

Question

I often see the term middleware mentioned in architecture evolution, but I don’t know what it means. Especially in development, there is also a middleware, such as the middleware on PHP laravel. Are these two related? I know that they are not related. Can you explain the middleware in the architecture in an easy-to-understand manner? I can't thank you enough.

Answer 1

nodejs express often talks about middleware, which means isolating the underlying HTTP processing, such as analyzing the URL and calling the appropriate function to process the request, encrypting and decrypting cookies, etc.