Summary

In this final iteration, we turned our attention to making changes to our application to help improve its maintainability and performance in a production environment. We first covered application logging strategies available in Yii, and how to log and route messages based on varying severity levels and categories. We then turned focus to error handling and how Yii exploits the underlying exception implementation in PHP 5 to provide a flexible and robust error handling framework. We then learned about some different caching strategies available in Yii. We learned about the caching of application data and content at varying levels of granularity. Data caching for specific variables or individual pieces of data, fragment caching for content areas within pages, and full page caching to cache the entire rendered output of a page request. Finally, we provided a list of "good practices" to follow when working to improve the performance of a Yii-powered Web application.

Unfortunately, our...