$aliases public static property Registered path aliases See

$classMap public static property Class map used by the Yii autoloading

getRootAlias() public static method Returns the root alias

$app public static property The application instance

error() public static method Logs an error message.

$container public static property The dependency injection (DI)

createObject() public static method Creates a new object

autoload() public static method Class autoload loader

getAlias() public static method Translates a path alias

setAlias() public static method Registers a path alias