git clone https://github.com/swoole/swoole-src.git
 cd swoole-src
 phpize
 ./configure --enable-openssl -with-php-config=[PATH] #注意[PATH]为你的php地址 开启ssl用
 make && make install

composer require "jianyan74/yii2-websocket"

"jianyan74/yii2-websocket": "^1.0"

   'redis' => [
       'class' => 'yii\redis\Connection',
       'hostname' => 'localhost',
       'port' => 6379,
       'database' => 0,
   ],

// webSocket
'websocket' => [
   'class' => 'jianyan\websocket\console\WebSocketController',
   'server' => 'jianyan\websocket\server\WebSocketServer', // 可替换为自己的业务类继承该类即可
   'host' => '0.0.0.0',// 监听地址
   'port' => 9501,// 监听端口
   'type' => 'ws', // 默认为ws连接，可修改为wss
   'config' => [// 标准的swoole配置项都可以再此加入
       'daemonize' => false,// 守护进程执行
       'task_worker_num' => 4,//task进程的数量
       // 'ssl_cert_file' => '',
       // 'ssl_key_file' => '',
       'pid_file' => __DIR__ . '/../../backend/runtime/logs/server.pid',
       'log_file' => __DIR__ . '/../../backend/runtime/logs/swoole.log',
       'log_level' => 0,
   ],
],

# 启动 
php ./yii websocket/start
# 停止 
php ./yii websocket/stop
# 重启 
php ./yii websocket/restart

<script>
    var wsl = 'ws://[to/your/url]:9501'; // 如果是wss的改成wss://[to/your/url]:9501
    ws = new WebSocket(wsl);// 新建立一个连接
    // 如下指定事件处理
    ws.onopen = function () {
        var login_data = '{"type":"login","nickname":"隔壁老王","head_portrait":"123","room_id":10001}';
        ws.send(login_data);
    };
    // 接收消息
    ws.onmessage = function (evt) {
        console.log(evt.data);
        /*ws.close();*/
    };
    // 关闭
    ws.onclose = function (evt) {
        console.log('WebSocketClosed!');
    };
    // 报错
    ws.onerror = function (evt) {
        console.log('WebSocketError!');
    };
    
    // 聊天
    function say(msg){
        if(msg){
            var data = '{"type":"say","to_client_id":"all","content":'+ msg +'}';
            ws.send(data);
        }
    }
</script>

ws://[to/you/url]:9501

ws://[to/you/url]:9501

{
　　"type":"login",
　　"from_client_id":2,
　　"to_client_id":"all",
　　"time":"2018-04-10 16:41:29",
　　"count":"1",
　　"member":{
　　　　"fd":2,
　　　　"room_id":10001,
　　　　"user_id":1,
　　　　"nickname":"隔壁老王",
　　　　"head_portrait":"123"
　　}
}

{
　　"type":"list",
　　"from_client_id":2,
　　"to_client_id":2,
　　"time":"2018-04-10 16:41:29",
　　"list":[{
     　　"fd":2,
     　　"room_id":10001,
     　　"user_id":1,
     　　"nickname":"隔壁老王",
     　　"head_portrait":"123"
     }]
}

ws://[to/you/url]:9501

{
　　"type":"say",
　　"from_client_id":2,
　　"to_client_id":"all",
　　"time":"2018-04-10 16:43:00",
　　"content":"123"
}

ws://[to/you/url]:9501

{
	"type": "gift",
	"from_client_id": 4,
	"to_client_id": "all",
	"gift_id": "礼物id",
	"time": "2018-03-06 11:27:15"
}

ws://[to/you/url]:9501

{
	"type": "leave",
	"from_client_id": 1,
	"to_client_id": "all",
	"count": 2,
	"time": "2018-03-06 11:27:15"
}