Debugging is an important process in which we can discover what went wrong with our application. Whether we're solving a problem locally or trying to identify an issue in our production, our applications need to be configured to supply us with the required information to quickly and effectively identify and resolve issues as they arise. In this section, we'll cover how to enable logging within our application, how to benchmark certain sections of code and handler errors, and general debugging tools and guidelines.
To help us debug our applications, Yii2 comes built with several different logging components and log methods that we can implement within our application. To get started with logging in Yii2, we first need to implement a log component within our application. Yii2 comes with several different components that we can implement in concert with one another or disjointedly.