PHP

Need help here.

Create a web page that generates a random math problem math problem (addition only) in the format that an elementary school student would understand. The first two values (A and B) would be randomly created and the user is expected to fill in a text field (for C) with the answer and press a submit button, and then continue to see that page with an appropriate response or a new problem. I want to see at least the following things in your code. Namely:

Use functions like is_numeric and rand

Important: Define one or more of your own functions and use it.