Ajax Floats: view externals websites or launch apps, tools or movies in a floating window above your joomla content, use it to run non joomla application without leaving you joomla of losing the current task. 1. Install the component and the module 2. Place the following code above the Closing tag of you current template 3. Activate the module and configure the mods parameters.

RunPHP allows a user to execute PHP code inline from within content items.

kl_php is a content mambot which is used to include PHP script in content.   

Moslate is a component for Joomla/Mambo 4.5.1+ (a PHP-based Content Management System) which allows you to create your own template based bots. That way you do not need to even think about mambot-parsing or regular expressions to replace simple tags.