CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License.
License: Open Source
Yii Framework offers a more comprehensive set of built-in features and better performance, making it suitable for larger applications, while CakePHP provides a simpler, more accessible approach for rapid application development and prototyping.