Who's Online PHP Script

This script utilizes MySQL and sessions to keep track of the number of people visiting your site. It is easily incorporated to any site. All that needs to be done is to edit 5-6 variables and run the script. It is just one file, but will update and tell the exact number of the people on the site. UPDATED to show WHO is online if you have registered members. Tutorial also posted on the website to help configure the script to work the way you want it to.