# transport ## 说明: ```php string Worker::$transport ``` 设置当前Worker实例所使用的传输层协议，目前只支持3种(tcp、udp、ssl)。不设置默认为tcp。 `注意：ssl需要Workerman版本>=3.3.7` ## 范例 1 ```php use Workerman\Worker; require_once __DIR__ . '/Workerman/Autoloader.php'; $worker = new Worker('text://0.0.0.0:8484'); // 使用udp协议 $worker->transport = 'udp'; $worker->onMessage = function($connection, $data) { $connection->send('Hello'); }; // 运行worker Worker::runAll(); ``` ## 范例 2 ```php <?php require_once __DIR__ . '/Workerman/Autoloader.php'; use Workerman\Worker; // 证书最好是申请的证书 $context = array( 'ssl' => array( 'local_cert' => '/etc/nginx/conf.d/ssl/server.pem', // 也可以是crt文件 'local_pk' => '/etc/nginx/conf.d/ssl/server.key', ) ); // 这里设置的是websocket协议 $worker = new Worker('websocket://0.0.0.0:4431', $context); // 设置transport开启ssl，websocket+ssl即wss $worker->transport = 'ssl'; $worker->onMessage = function($con, $msg) { $con->send('ok'); }; Worker::runAll(); ```