yii2加密解密

$secretKey  你自己设置的密码

获取用户id:   $id = Yii::$app->user->id;

加密id :$uid =base64_encode(Yii::$app->getSecurity()->encryptByPassword($id, $secretKey));

解密uid: $iss=Yii::$app->getSecurity()->decryptByPassword(base64_decode($data),$secretKey);