Drupal caches database schema metadata as well as elements such as blocks, forms and menus. It increases performance in database queries and reduces PHP code usage.
With Drupal, the management of various elements such as blocks, forms and menus is extremely simple. As a result, there is a reduction in the use of PHP codes and the performance of the database queries improves.
Drupal Design & Development
Drupal is a free and open-source content-management framework written in PHP. It is used as a back-end framework for at least 2.1% of all Web sites worldwide ranging from personal blogs to corporate, political, and government sites.
Administrators of Drupal sites are automatically notified of these new releases via the Update Status module (Drupal 6) or via the Update Manager (Drupal 7). Drupal maintains a security announcement mailing list, a history of all security advisories, a security team home page.
Multiple Content Types
Drupal provides complete flexibility over defining how different content types (e.g. articles, blog posts, news stories) appear and the functionality associated with each content type, such as allowing or disallowing user comments.