Yii2.0框架behaviors方法使用实例分析(2)

public function behaviors()
{
    return [
      'access' => [
        'class' => AccessControl::className(),
        'only' => ['logout', 'signup', 'change-password'],
        'rules' => [
          [
            'actions' => ['signup'], //允许游客注册
            'allow' => true,
            'roles' => ['?'],
          ],
          [
            'actions' => ['logout', 'change-password'],
            'allow' => true,     //允许用户登出、修改密码
            'roles' => ['@'],
          ],
        ],
      ],
      'verbs' => [
        'class' => VerbFilter::className(),
        'actions' => [
          'logout' => ['post'],    //登出只允许提交方式为post,否则报错
        ],
      ],
    ];
}