Plugin Extensible CMS Creation - Examples

Question

I am working with an open source script. I would like to provide a script extension function with plugins / modules.

I need open source scripting / scripting guidelines for learning code in order to compile best practices for creating extensible plugin scripts. I used WordPress in the past and planned to implement a similar system, but I am looking for opportunities to switch to alternatives that may be better.

The preferred language is PHP 5.

Answer 1

Drupal (http://drupal.org/) - CMS , , . , , , , . , , Joomla (http://www.joomla.org/)

Answer 2

Drupal.