参考
深入理解fastcgi协议以及在php中的实现 https://mengkang.net/668.html
fastcgi协议规范内容 http://andylin02.iteye.com/blog/648412
tpip fastcgi http://www.php-internals.com/book/?p=chapt02/02-02-03-fastcgi
cgi/v1.1文档 https://datatracker.ietf.org/doc/rfc3875/
fastcgi官网 http://www.fastcgi.com/drupal/node/2