You can install Yii in two ways, using [Composer](http://getcomposer.org/) or by downloading an archive file.
You can install Yii in two ways, using the [Composer](http://getcomposer.org/) package manager or by downloading an archive file.
The former is the preferred way, as it allows you to install new [extensions](structure-extensions.md) or update Yii by simply running a single command.
Standard installations of Yii result in both the framework and an application template being downloaded and installed.
You should also see a toolbar at the bottom of the browser window.
This is a useful [debugger tool](tool-debugger.md) provided by Yii to record and display a lot of debugging information, such as log messages, response statuses, the database queries run, and so on.
Additionally to the web application, there is a console script called `yii`, which is located in the applications base directory.
This script can be used to run background and maintainance tasks for the application, which are described
in the [Console Application Section](tutoral-console.md).