Question

I know that in PHP you can declare a variable A and then if you increment it in a loop it will go A,B,C,….X,Y,Z,AA,AB,AC

Is there any php function to convert an integer to the corresponding string in that format

Answer 1

I started with Tor P’s answer and I think this works as desired:

function numToString($i) {
    if($i < 26) {
        return chr(65 + $i);
    } else {
        $i -= 26;
        $r = $i % 26;
        return numToString($i - $r).chr(65 + $r);
    }
}