WebSocket::log PHP Method

    function log($msg = "")
    {
        if ($this->debug) {
            echo $msg . "\n";
        }
    }

function main()
{
    require 'WebSocket.class.php';
    $webSocketServer = new WebSocket();
    //$webSocketServer = Api('WebSocket');
    $onMessage = function ($clientID, $message, $messageLength, $binary) use($webSocketServer) {
        $ip = long2ip($webSocketServer->wsClients[$clientID][6]);
        // check if message length is 0
        if ($messageLength == 0) {
            $webSocketServer->wsClose($clientID);
            return;
        }
        //The speaker is the only person in the room. Don't let them feel lonely.
        if (sizeof($webSocketServer->wsClients) == 1) {
            $webSocketServer->wsSend($clientID, "没有别的人在房间里，但我还是会听你的。——你可靠的服务器");
        } else {
            //Send the message to everyone but the person who said it
            foreach ($webSocketServer->wsClients as $id => $client) {
                if ($id != $clientID) {
                    $webSocketServer->wsSend($id, "游客 {$clientID} ({$ip}) 说 \"{$message}\"");
                }
            }
        }
    };
    $onOpen = function ($clientID) use($webSocketServer) {
        $ip = long2ip($webSocketServer->wsClients[$clientID][6]);
        $webSocketServer->log("{$ip} ({$clientID}) 已连接。");
        //Send a join notice to everyone but the person who joined
        foreach ($webSocketServer->wsClients as $id => $client) {
            if ($id != $clientID) {
                $webSocketServer->wsSend($id, "游客 {$clientID} ({$ip}) 加入房间。");
            }
        }
    };
    $onClose = function ($clientID, $status) use($webSocketServer) {
        $ip = long2ip($webSocketServer->wsClients[$clientID][6]);
        $webSocketServer->log("{$ip} ({$clientID}) 已断开。");
        //Send a user left notice to everyone in the room
        foreach ($webSocketServer->wsClients as $id => $client) {
            $webSocketServer->wsSend($id, "游客 {$clientID} ({$ip}) 离开了房间。");
        }
    };
    $webSocketServer->bind('message', $onMessage);
    $webSocketServer->bind('open', $onOpen);
    $webSocketServer->bind('close', $onClose);
    $serverStatus = $webSocketServer->wsStartServer('0.0.0.0', 9300);
    if ($serverStatus == false) {
        echo $webSocketServer->error;
    } else {
        echo 'webSocketServer Normal end';
    }
}