Special notice to everyone out there today - there's a PHP Virus on the loose. According to Symantec and the Dynamically Typed Weblog, it's more dangerous that we thought.

PHP.Pirus is the first virus written in PHP, a server-side scripting language used for dynamic Web page generation. The virus runs only on servers with PHP interpreters. This virus cannot be contracted by simply visiting an infected Web page. The virus is saved as a file on the hard drive, and it inserts code into .php and .htm files to call itself. The name of the virus file varies, but is likely to use the extension .php

So, be on the lookout for this crafty little chunk of code - it just might find its way into your code next!