Hyperf 高性能PHP协程框架实战（七） WebSocket 服务

      composer安装WebSocket服务：

composer require hyperf/websocket-server

      在配置文件 config/autoload/server.php 文件中，servers下添加WebSocket服务配置，如下：

'servers' => [
        [
            'name' => 'http',
            'type' => Server::SERVER_HTTP,
            'host' => '0.0.0.0',
            'port' => 9501,
            'sock_type' => SWOOLE_SOCK_TCP,
            'callbacks' => [
                Event::ON_REQUEST => [Hyperf\HttpServer\Server::class, 'onRequest'],
            ],
        ],
        [
            'name' => 'ws',
            'type' => Server::SERVER_WEBSOCKET,
            'host' => '0.0.0.0',
            'port' => 9502,
            'soc