'admin@example.com', 'supportEmail' => 'support@example.com', 'components.cache' => array( 'class' => 'yii\caching\FileCache', ), 'components.db' => array( 'class' => 'yii\db\Connection', 'dsn' => 'mysql:host=localhost;dbname=yii2advanced', 'username' => 'root', 'password' => '', ), );