workerman websocket客户端

use Workerman\Worker;
use Workerman\Connection\AsyncTcpConnection;
require_once __DIR__ . '/vendor/autoload.php';

$worker = new Worker();

$worker->onWorkerStart = function($worker){
    $con = new AsyncTcpConnection('ws://echo.websocket.org:80');

    $con->onConnect = function(AsyncTcpConnection $con) {
        $con->send('hello');
    };

    $con->onMessage = function(AsyncTcpConnection $con, $data) {
        echo $data;
    };

    $con->connect();
};

Worker::runAll();