Archived:Creating a simple module/Introduction
From Joomla! Documentation
Requirements
You need the latest version of Joomla! 2.5 (with PHP, MySQL, Apache and Microsoft II) for this tutorial (as of writing currently 2.5.11)
Introduction
Joomla! 2.5 is constructed using three different applications:
- installation (used for installing Joomla)
- administrator (used for managing content)
- public (used for displaying content)
The installation application is used once. The administrator and public are used through the concept of components with modules. Each module has a single entry point located in the modules directory.
Both are called mod_modulename/modulename.php (the mod_ prefix is a historical trace)