CodeCanyon - Uonline - A PHP Class to Count Online Users - RIP | 830 KB
Uonline is a PHP Class to calculate visitors online on your website. Uonline manages the database with the latest uses coming on you website. It is designed to work fast as possible.
DEMO:
http://codecanyon.net/item/uonline-a-php-class-to-count-online-users/5409602?WT.ac=new_item&WT.seg_1=new_item&WT.z_author=poush