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The Definitive Guide introduces the fundamentals of managing URLs in a Yii application. In this tutorial, we introduce a practical technique that can quickly turn your application into using search-engine-friendly URLs.

This method was inspirated on the excellent text about different environments available at http://www.yiiframework.com/doc/cookbook/32/

The issue is covered in "The Definite Guide to Yii" (Error Handling - Handling Errors Using an Action).

With yii you're able to create ajax requests and updates easily. But most times you always want to show a loading indicatior to your user.

After adding proper form to the main layout, like:

Adding HTTP compression to your application could never have been easier!

Because Yii intends to be integrated nicely with third-party libraries, it does not define any global functions. Everything in Yii needs to be addressed with full class name or object scopes. For example, to access the current user, we need to use Yii::app()->user; to access application parameters, we need Yii::app()->params['name']; and so on. While editors like textmate can help alleviate the problem of these lengthy typings, it is worthwhile to define global shortcut functions to some commonly used method calls. They will make the application code look cleaner.

This is the first real problem that I encountered using Yii, trying to make a Model input repeatable in the form, validate and save them.

As seen in this post, Yii doesn't enforce how language is set and maintained within the session.

Often you'll need a form with two dropdowns, and one dropdown's values will be dependent on the value of the other dropdown. Using Yii's built-in AJAX functionality you can create such a dropdown.