Yii

API reference › Global namespace › Yii

class	`Yii`
Extends	`yii\BaseYii`
Since	2.0
Source	`framework/Yii.php`

Yii is a helper class serving common framework functionalities.

It extends from BaseYii which provides the actual implementation. By writing your own Yii class, you can customize some functionalities of BaseYii.

Properties

Property	Type	Description	Defined by
`$aliases` static	`array`	Registered path aliases Default: `['@yii' => __DIR__]`.	`yii\BaseYii`
`$app` static	`yii\console\Application\|yii\web\Application<yii\TUserIdentity>\|null`	The application instance Default: `null`.	`yii\BaseYii`
`$container` static	`yii\di\Container`	The dependency injection (DI) container used by `createObject()`. Default: `null`.	`yii\BaseYii`

Methods

Method	Description	Defined by
`beginProfile()` static	Marks the beginning of a code block for profiling.	`yii\BaseYii`
`configure()` static	Configures an object with the initial property values.	`yii\BaseYii`
`createObject()` static	Creates a new object using the given configuration.	`yii\BaseYii`
`debug()` static	Logs a debug message.	`yii\BaseYii`
`endProfile()` static	Marks the end of a code block for profiling.	`yii\BaseYii`
`error()` static	Logs an error message.	`yii\BaseYii`
`getAlias()` static	Translates a path alias into an actual path.	`yii\BaseYii`
`getLogger()` static		`yii\BaseYii`
`getObjectVars()` static	Returns the public member variables of an object.	`yii\BaseYii`
`getRootAlias()` static	Returns the root alias part of a given alias.	`yii\BaseYii`
`getVersion()` static	Returns a string representing the current version of the Yii framework.	`yii\BaseYii`
`info()` static	Logs an informative message.	`yii\BaseYii`
`setAlias()` static	Registers a path alias.	`yii\BaseYii`
`setLogger()` static	Sets the logger object.	`yii\BaseYii`
`t()` static	Translates a message to the specified language.	`yii\BaseYii`
`warning()` static	Logs a warning message.	`yii\BaseYii`