Thirty-one is a card game that is similar to Blackjack (21), but is quite different. This is a PHP/HTML/Javascript/AJAX port of the game. It has a minimal interface- the only graphics are the card images. It is not designed with security in mind; it works best on a local intranet. This game, like hello.php, was mainly a learning experience for me. You can download it here in ZIP form; you'll need a webserver with PHP to play it.