On Nisha.in today there's <a big list of content management systems based on PHP - about twenty of them.
A Content Management System ( CMS ) is used to add, edit, and delete content on a website. For a small website, such as this, adding and deleting a page manually is fairly simple. But for a large website with lots of pages like a news website adding a page manually without a content management system can be a headache. A CMS is meant to ease the process of adding and modifying new content to a webpage.
The list includes several of the most popular CMSes like: