xoops

XOOPS, short for eXtensible Object Oriented Portal System, is an open-source content management system and web application framework written in PHP. It is designed to enable the creation of dynamic community websites and portals. The platform centers on a modular architecture where a lightweight core provides essential services and functionality is extended through modules and blocks. A templating system and themes control presentation, while built-in user management and access control lists support multi-user collaboration and permissions. XOOPS typically works with relational databases such as MySQL and PostgreSQL and aims to be portable across common hosting environments.

Key features include a modular repository of addons, including modules for news, forums, galleries, polls, and e-commerce, as well as blocks for placing content in sidebars and other regions. The installer and upgrade tools simplify site setup and maintenance, and the platform supports internationalization with multiple languages. Security, scalability, and extensibility have been central design goals, with developers regularly releasing updates and security patches.

History and status: XOOPS originated in the early 2000s as a global, community-driven project. It established a reputation for ease of use and extensibility, attracting a wide ecosystem of developers and site administrators. Over time, various forks and evolutions appeared, including distinct projects that continued to advance modular PHP-based portals. Today, the XOOPS project remains active through its community, providing core software, modules, themes, and documentation under the GNU General Public License.

See also: open-source CMS, PHP-based web platforms, modular CMS ecosystems.