使用swoole扩展php websocket示例

class WebSocket extends SwooleNetworkProtocolWebSocket
{
/**
* 下线时，通知所有人
*/
function onClose($serv,$client_id,$from_id)
{
//将下线消息发送给所有人
//$this->log("onOffline: " . $client_id);
//$this->broadcast($client_id,"onOffline: " . $client_id);
parent::onClose($serv,$from_id);
}

/**
* 接收到消息时
* @see WSProtocol::onMessage()
*/
function onMessage($client_id,$ws)
{
$this->log("onMessage: ".$client_id.' = '.$ws['message']);
$this->send($client_id,"Server: ".$ws['message']);
//$this->broadcast($client_id,$ws['message']);
}

function broadcast($client_id,$msg)
{
foreach ($this->connections as $clid => $info)
{
if ($client_id != $clid)
{
$this->send($clid,$msg);
}
}
}
}

$AppSvr = new WebSocket();
$AppSvr->loadSetting(__DIR__."/swoole.ini"); //加载配置文件
$AppSvr->setLogger(new SwooleLogEchoLog(true)); //Logger

$server = new SwooleNetworkServer('0.0.0.0',9503);
$server->setProtocol($AppSvr);
//$server->daemonize(); //作为守护进程
$server->run(array('worker_num' =>4));