Find the collection of PHP Content Management Systems.
Back Drop CMS
The free and Open Source CMS that helps you build websites for businesses and non-profits.
https://github.com/backdrop/backdrop-issues GitHUB Page for backdropcms
Concrete5 CMS
concrete5 is an Open Source Content Management System (CMS).
https://github.com/concrete5/concrete5 GitHUB Page for concrete5
Drupal
An enterprise level CMS.
https://github.com/drupal/drupal GitHUB Page for drupal.org
Grav
Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS
https://github.com/getgrav/grav GitHUB Page for getgrav.org
Joomla
Joomla! is an award-winning content management system (CMS), which enables you to build web sites and powerful online applications.
https://github.com/joomla/joomla-cms GitHUB page for Joomla
Magento
Power your eCommerce with rich out-of-the-box features, an unrivaled ability to customize, and seamless third-party integrations. With a global ecosystem of implementation partners and a vast marketplace of extensions, you can create the exact shopping experience your customers want.
https://github.com/magento/magento2 GitHUB page for Magento
WordPress
WordPress is open source software you can use to create a beautiful website, blog, or app.
https://github.com/WordPress/WordPress GitHUB page for WordPress
Moodle
Moodle is the world’s most popular learning management system. Start creating your online learning site in minutes!
https://github.com/moodle/moodle GitHUB page for Moodle
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