Question

I have an if statement that I want to control with having one field needing input and they have to pick one of the other 2 choices.

if(test1 && test || test3){
//Something here
}

Should I do it like this:

if(test1 && (test2 || test3)){
//do stuff
}

How would I go about doing this. I can’t wrap my head around the logic…

Answer 1

if ($requiredField && ($optional1 || $optional2)) {
  /* Do something */
}

For the /* Do something */ bit of code to be executed, the if statement has to evaluate to TRUE.

This means, that $requiredField must be TRUE, and so must be ($optional1 || $optional2).

For $requiredField to be TRUE, it just needs to be filled in – and for the second part: ($optional1 || $optional2) either optional1 or optional2 would do it.

Edit:

After rereading the question, it seems that I might have misunderstood you. If the user must enter one specific piece of information, and must choose only one (not both) out of two options – then the following should be used.

if ($requiredField && ($optional1 ^ $optional2)) {
  /* Do something */
}

This means that $optional1 or $optional2 must be filled out – but not both of them.