PHPBuilder.com has posted what they consider to be the top five content management systems written in PHP including Drupal and Joomla.
With solutions such as the Zend Framework and CodeIgniter making it easier than ever to create complex web applications, it can be tempting to flex your developer muscles and create custom framework-based solutions whenever the opportunity arises. However, the PHP community has also made great strides with another type of web development solution, as the content management system (CMS).
He looks at some of the key features of each and points out some of the more popular sites using them as a backend. He wants to give you a starting point to look into: