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

for  ($i = 1 ; $i <= 3 ; $i++){
    $varName = "pBalance".$i;
    $tempTotal += $$varName;
}

This will do what you want. However you might indeed consider using an array for this kind of thing.