A Dutch web developer has created a rootkit that hides inside a PHP module and can be used to take over web servers via a rarely used attack vector: Apache modules.

Most real-world Web applications will want a bunch of additional PHP modules installed. If we wanted to install WordPress, for instance, we'd want the following laundry list of PHP extensions: ...

Learn how to troubleshoot Apache 2 when it's not executing PHP files with this easy-to-follow, step-by-step tutorial.

PHP is used to create dynamic interactive websites. When a user requests a web page that contains PHP code, the code is processed by the PHP module installed on that web server.