WordPress is an open source blog tool and publishing platform powered by PHP and MySQL. It's often customized into a Content Management System (CMS). It has many features including a plug-in architecture and a template system.
Theme Structure All of these files connect to the mySQL database. That’s where the content lives. Widgets are containers that mostly live in the sidebar, but can be in the footer or header too! Style.css controls the look of everything. widget widget (Where the “Loop” happens)