Ads And Content limiter is a class that protects Web ads and content from unwanted views and hits. If a visitor to your site views 20 pages and you have three ads on each, that would be 60 wasted ads as the user has been ignoring them. The class allows you to control the maximum number of views over a specified time for a unique IP address. You can also nominate IP addresses to be permanently blocked from viewing ads or content.
Lite User Agents API is a PHP class to obtain information related to Web browser user agent data. It accesses the user-agents.org site and retrieves an XML file with information of the user agent identification of all known browsers and robots. The class can store the retrieved information into a MySQL database or a given XML file.
php ban and trap is a system that can be used for purposes ranging from a standalone ban system to a robot trap and automatic ban system. It has functions and features for administration control and form input validation. It is easy to integrate into object-oriented PHP classes. It features auto expiry control.