This code was based on the idea that both the php script calling the image, and the image itself would have the same server time. If you try to use this script on a site that uses multiple servers, it would be a good idea to synchronize their cpu clocks.   Author: scripts@franciscocharrua   Code: PHP 4.0

Login Using Cookies is a PHP script that will allow you to set session based logins for your users. Allow users to stay logged into your site for return visits or simply provide additional security verifications to your users.   Author: Links Traffic   Code: PHP 4.0