websocket

todo, 这个未来要搞.

Websocket只是一个网络通信协议,
就像 http、ftp等都是网络通信的协议
相对于HTTP这种非持久的协议来说，Websocket是一个持久化网络通信的协议；

从tcp角度理解socket: http://blog.yemou.net/article/query/info/tytfjhfascvhzxcytp59

从tcp/ip角度理解socket: http://www.111cn.net/phper/php-function/103096.htm

2010年的老文章: http://code.tutsplus.com/tutorials/start-using-html5-websockets-today–net-13270

However, the best solution is to use NodeJS with Socket.io and DNode (very elegant solution that works cross-browser and is not that difficult), but you need to be able to install NodeJS on your server. I can provide samples if you want.

swoole参考: http://www.jianshu.com/p/fedbb9d2d999

Websocket、socket.io，用了最简单的ajax

flush(), 刷新PHP程序的缓冲，而不论PHP执行在何种情况下（CGI ，web服务器等等）。该函数将当前为止程序的所有输出发送到用户的浏览器。

HTML5 WebSockets: var host = “ws://localhost:8000/socket/server/startDaemon.php”;

node.js

兼容封装层(socket.io)

Flash/HTML5 WebSockets

各种方案对比: http://www.cnblogs.com/hnrainll/archive/2013/05/07/3064874.html

wiki: https://en.wikipedia.org/wiki/Network_socket