Although I posted yesterday how to add your latest tweet to WordPress without a plugin, I made several changes to the script before I posted it to make it more “generic” and re-usable. Since I’ve changed it quite a bit, I decided to repost it. This new script also autolinks @usernames and #hash tags.
Directions are this easy: set the path of $tw_File with a static, writable file. Set $tw_userid to your Twitter user id. Done.