Alternative to if(x >= 200 && x <= 299)?

Question

In PHP (or any similar language), is there a better alternative to:

if(x >= 200 && x <= 299){
   return 'ok';
}

My goal is to validate if a number is in the range of the 2xx code (for HTTP requests). I don't like the double-if clause because I must define the end of the range, and for some reason it's not practical when doing various automated validations.

Answer 1

In PHP (or any similar language), is there a better alternative to...

No there isn't, in my opinion.

Your code:

if (x >= 200 && x <= 299) {
    return 'ok';
}

is very readable and clearly defines what is being checked.