js部分

    
    
    
     
        
      
    
     
    
     
        
      
            
               
      
    
     
    
     
        
      发送    
     
    

php部分（记得先配置好服务器，安装swoole拓展）

    on('open', function (swoole_websocket_server $server, $request) {    echo "server: handshake success with fd{$request->fd}\n";});$server->on('message', function (swoole_websocket_server $server, $frame) {    foreach($server->connections as $key => $fd) {        $user_message = $frame->data;        $server->push($fd, $user_message);    }});$server->on('close', function ($ser, $fd) {    echo "client {$fd} closed\n";});$server->start();