WordPress is an online, open source website creation tool written in PHP. But in non-geek speak, it’s probably the easiest and most powerful blogging and website content management system (or CMS) in existence today.You’re in good company if you use WordPress to publish on the web. Many famous blogs, news outlets, music sites, Fortune 500 companies and celebrities are using WordPress.
WordPress has a web template system using a template processor. Its architecture is a front controller, routing all requests for non-static URIs to a single PHP file which parses the URI and identifies the target page.