How to determine whether to log in using yii

Determine whether the user is logged in: (Recommended learning: yii framework)

In Yii2.0, to determine whether the user is logged in, we use The following code can

Yii::$app->user->isGuest;

Example: If the user is already logged in, directly call the goHome() method

if (!\Yii::$app->user->isGuest) {
return $this->goHome();
}

Get the login username

In yii2.0, get the login For the user name in the status, you can use the following code.

Yii::$app->user->identity->username;

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