Free PHP CMS Systems
Exponent Content Management System
Exponent is a fully-featured, modern CMS written in PHP, that enables non-technical people to manage and update their websites with minimal effort. Exponent is also an attractive development platform for traditional and non-traditional web applications.
Back-End.org
A GPL CMS based on PHP/MySQL.
Puzzle Apps
Content Management System developed in PHP, using XSL as templating engine. Use of SQL database (MySql, SQLite, PostgreSQL, soon MSSQL) with ADODB or PEAR::DB as DBAL. *NIX like permission system. You can run many websites in one database.
phpwcms
phpwcms is an Open Source web content management system. It is optimized for fast and easy setup and works on any standard webserver platform that supports PHP/MySQL and was tested successfully on Windows 2000/XP, MacOSX and LINUX
CMSimple
CMSimple is a simple content management system for smart maintainance of small commercial or private sites. CMSimple is written in PHP. It apparently uses a flat file for storage rather than a database and is not recommented for sites with text contents above 2 MB.
TYPO3
A free, features rich, Content Management System built with PHP/MySQL and running under many Unixes and Windows.
UseBB
UseBB is an easy-to-set up and easy-to-use Open Source PHP/MySQL bulletin board system with several user and administration possibilities, especially designed for small to medium sized web sites which do not need the overdose of features found in other forum packages.
Xaraya
Xaraya is an Open Source extensible content management system. The system allows on-the-fly extensions to the content and user areas which allow greater control and versatility. Coupled with a XSLT style template engine with complete templating of output.
PHP-Nuke
PHP-Nuke is a news automated system specially designed to be used in Intranets and Internet. The Administrator has total control of his web site, registered users, and he will have in the hand a powerful assembly of tools to maintain an active interactive web site using databases. Requires php and an sql database server.
Tiki CMS
Tiki is a powerful CMS/Groupware. Features: article, forum, newsletter, blog, file/image gallery, wiki, drawing, tracker, directory, poll/survey & quiz, FAQ, chat, banner, webmail, calendar, category, ACL, etc in Single Sign-on or LDAP.(PHP/MySQL/Smarty)
PostNuke
PostNuke is a community, content, collaborative management system. Has been translated into many languages including a recent arabic translation.
Geeklog
Geeklog is a blog, otherwise known as a Weblog. It allows you to create your own virtual community area, complete with user administration, story posting, messaging, comments, polls, calendar, weblinks, and more. It can run on many different operating systems, and uses PHP4 and MySQL.
Mambo
Mambo Open Source claims to be the finest open source Web Content Management System available today. According to their website there is no need for HTML, XML or DHTML skills, just enter your content, add a picture and then through the easy to use administrator web-interface click and publish.
php Simple News
php Simple News is PHP/MySQL based news management system for your web site that's simple to use and easy to setup. Add, edit and delete posts through a GUI administration suite. Customizable output. Supports multiple news posters.
PROPS
PROPS is an open, extensible Internet publishing system designed specifically for periodicals such as newspapers and magazines who want to publish online, either exclusively or as an extension of their print publication. PROPS is written entirely in PHP4 using a MySQL database backend, and is free software released under the GNU General Public License (GPL).
phpWebSite
phpWebSite provides a complete web site content management system. Web-based administration allows for easy maintenance of interactive, community-driven web sites. Client output from phpWebSite is valid XHTML 1.0 and meets the W3C's Web Accessibility Initiative requirements.
ezContents
ezContents is an Open-Source website content management system based on PHP and MySQL. Features include maintaining menus and sub-menus, adding authors that write contents, permissions, workflow, and layout possibilities for the entire look of the site by simple use of settings.
XOOPS
XOOPS is a dynamic OO (Object Oriented) based open source portal script written in PHP. XOOPS is the ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, weblogs and much more.
PrattCMS
PrattCMS is a powerful and easy to implement Content-Management-System. With a WYSIWYG HTML editor that runs inline on both Mozilla, and Internet Explorer non-technical users can change content of the website (note: there is a text editor as part of the WYSIWYG editor for those users with HTML knowledge). PrattCMS is really a cobbling together of many different open-source technologies, including the Smarty Templating Engine, the PEAR database scripts, and PHP.
Vortex Portal
Vortex Portal is a template-based content management solution for gaming websites.
eZ publish
"eZ publish is a powerful open source framework for content management, sharing and collaboration."
Sitellite
Sitellite is an advanced Open Source (GPL) web based Content Management System (CMS) and PHP framework which also utilizes Apache and MySQL technology to operate. There are open source and commercial versons.
FlexCMS
FlexCMS is an out of the box user-friendly CMS. Easily build dynamic websites/portals, maintain web content, navigation and even limit access to what members/guests see/do from anywhere in the world with just a web browser. Free version contains advertising.