Can I use a generated variable name in PHP?

Question

I have a bunch a values I would like to add together which are entered into a form. Right now, the form has 11 lines but it could get larger in the future. I can easily add

Answer 1

The concept you're looking for is called a variable variable (at least it's called that in PHP). Here is the official documentation and a useful tutorial. The syntax for a variable variable is a double dollar sign ($$).