Re: Iteration through letter

Norbert Wenzel wrote:

Hi, just for fun I tried the following code: <code> for($letter = 'A'; $letter <= 'Z'; ++$letter) {

    echo($letter . ' ');

} </code> What surprised me was the output, which looked like this: A B C [...] Y Z AA AB AC [...] YY YZ I don't have any idea how these letters get printed out, so I'd appreciate any guesses or explanations. This was discussed a lot a couple months back (Rasmus answered it about 20 times). This is my rendition.

When you increment a string, you get: 'A' + 1 is 'B' ... 'Z' + 1 is 'AA' Because of how string comparisons go, 'AA' is greater than 'Z' (strings are compared letter by letter), so the loop won't terminate at 'Z', like you'd expect. jon