YiiFramework helps Web developers build complex applications and deliver them on-time.
Yii comes with rich features: MVC, DAO/ActiveRecord, I18N/L10N, caching, authentication and role-based access control, scaffolding, testing, etc. It can reduce your development time significantly.
Features
Model-View-Controller (MVC) design pattern
Database Access Objects (DAO), Query Builder, and Active Record
Form input and validation
AJAX-enabled widgets
Authentication and authorization
Skinning and theming
Web services
Internationalization (I18N) and localization (L10N)