http://www.socketo.me/docs/hello-world
https://github.com/Devristo/phpws
http://socketo.me Ratchet 为 php 封装的一个 WebSockets 库
https://github.com/hoaproject/Websocket
https://www.php.net/manual/zh/book.swoole.php
http://www.swoole.com/
https://www.bbsmax.com/A/RnJWxnVg5q/
http://wsphp.net
https://github.com/wsphp/php-websocket-chat
https://github.com/wsphp/php-websockets-admin
nginx配置websocket反代例子
https://github.com/nicokaiser/nginx-websocket-proxy
下面这个没有php例子
https://libwebsockets.org/
https://github.com/warmcat/libwebsockets
下面这个不懂干嘛的 物联网
https://www.jianshu.com/p/d90fa3b6a12c