Question

I have this block of code

public function onlyLetters($string) {
    if(preg_match("/[a-zA-Z]/", $string)) {
        return true;
    } else {
        return false;
    }
}

but it always returns false, what would the reason be?

Answer 1

Your string most likely doesn’t contain what you expect, and doesn’t have a single upper or lower case a-z letter.

OR – you aren’t handling the return value correctly

If you check these assumptions, you’ll probably solve it yourself 🙂