$title = preg_replace("[^A-Za-z0-9 ]", "", $title);
$title = ereg_replace("[^A-Za-z0-9 ]", " ", $title);
$output .= ''.$tag . " ";
spodeFinally, something I felt would be quite useful to anyone coming in half way through the game, I added a script that will go through every discussion on your forum and generate tags for them from the titles. Worked a charm on spodesabode.com. You can run this by visiting /extension/?AutomaticTags=1 . It might generate a few errors, but they don't affect it's ability to function.