Class yii\filters\AccessControl

AccessControl provides simple access control based on a set of rules.

AccessControl is an action filter. It will check its $rules to find the first rule that matches the current context variables (such as user IP address, user role). The matching rule will dictate whether to allow or deny the access to the requested controller action. If no rule matches, the access will be denied.

To use AccessControl, declare it in the behaviors() method of your controller class. For example, the following declarations will allow authenticated users to access the "create" and "update" actions and deny all other users from accessing these two actions.

public function behaviors()
{
    return [
        'access' => [
            'class' => \yii\filters\AccessControl::className(),
            'only' => ['create', 'update'],
            'rules' => [
                // deny all POST requests
                [
                    'allow' => false,
                    'verbs' => ['POST']
                ],
                // allow authenticated users
                [
                    'allow' => true,
                    'roles' => ['@'],
                ],
                // everything else is denied
            ],
        ],
    ];
}