Redis发布和订阅在动态密钥上不工作

我的要求是为特定的用户发布消息。

$messageQueueKey=(string)$receiver; (receiver_id)
$redis->publish($messageQueueKey, json_encode($data));

Server.js//nodejs

  var handshakeData = socket.request;
  var messageQueueKey=handshakeData._query['userid'];
  clients[socket.id] = socket;
  var redisClient = redis.createClient();
  redisClient.subscribe(messageQueueKey);
 // redisClient.subscribe('message');
  redisClient.on('message', function(channel, message)
  {
      var data = JSON.parse(message);
      if(typeof connectedClients[data['receiver']] === 'undefined'){}
      else
      {
        connectedClients[data['receiver']].socket.emit(channel, message);  
      } 
  });

然而，我的代码适用于硬编码密钥'消息'，但接收器接收多个消息，这就是为什么我想根据他们的auth id发布和订阅每个用户的不同密钥