$runtimePath public property The directory that stores runtime

getRuntimePath() public method Returns the directory that

getI18n() public method Returns the internationalization

$urlManager public read-only property The URL manager

$language public property The language that is meant to be used

$extensions public property List of installed Yii extensions.

$state public property The current application state during a

EVENT_BEFORE_REQUEST event of type yii\base\Event

$requestedAction public property The requested Action. If null

__construct() public method Constructor.