php - What is the difference between service and interface?

Question

What is the difference between service and interface?

Answer 1

The service is for users

The interface is for developers

Answer 2

This can be compared to the relationship between a mobile phone and a mobile phone interface. Just like a mobile phone has the function of making calls and taking pictures, each service also encapsulates a series of functions and then interacts with users through interfaces.

Answer 3

Can you tell me in detail what kind of service and interface it is? This is too general.