[Yii Framework] Yii::app() 包含的对象列表 -- The list objects of Yii::app()

Below we list the core components that are pre-declared byCWebApplication.

• assetManager: CAssetManager -manages the publishing of private asset files.

• authManager: CAuthManager - manages role-based access control (RBAC).

• cache: CCache - provides data cachingfunctionality. Note, you must specify the actual class (e.g.CMemCache, CDbCache). Otherwise, null will be returned when youaccess this component.

• clientScript: CClientScript -manages client scripts (javascripts and CSS).

• coreMessages: CPhpMessageSource -provides translated core messages used by Yii framework.

• db: CDbConnection - provides the databaseconnection. Note, you must configure itsconnectionString property in orderto use this component.

• errorHandler: CErrorHandler - handlesuncaught PHP errors and exceptions.

• format: CFormatter - formats data valuesfor display purpose. This has been available since version 1.1.0.

• messages: CPhpMessageSource - providestranslated messaged used by Yii application.

• request: CHttpRequest - providesinformation related with user requests.

• securityManager: CSecurityManager -provides security-related services, such as hashing, encryption.

• session: CHttpSession - providessession-related functionalities.

• statePersister: CStatePersister -provides global state persistence method.

• urlManager: CUrlManager - providesURL parsing and creation functionality.

• user: CWebUser - represents the identityinformation of the current user.

• themeManager: CThemeManager - manages themes.