如何实现从 Redis 中订阅消息转发到 WebSocket 客户端

 1 $server = new swoole_websocket_server("0.0.0.0", 9501);
 2 
 3 $server->on(‘workerStart‘, function ($server, $workerId) {
 4     $client = new swoole_redis;
 5     $client->on(‘message‘, function (swoole_redis $client, $result) use ($server) {
 6         if ($result[0] == ‘message‘) {
 7             foreach($server->connections as $fd) {
 8                 $server->push($fd, $result[1]);
 9             }
10         }
11     });
12     $client->connect(‘127.0.0.1‘, 6379, function (swoole_redis $client, $result) {
13         $client->subscribe(‘msg_0‘);
14     });
15 });
16 
17 $server->on(‘open‘, function ($server, $request) {
18 
19 });
20 
21 $server->on(‘message‘, function (swoole_websocket_server $server, $frame) {
22     $server->push($frame->fd, "hello");
23 });
24 
25 $server->on(‘close‘, function ($serv, $fd) {
26 
27 });
28 
29 $server->start();