隐藏http头里的X-Powered-By php版本号

1.找到php.ini

$ php -i | grep "Loaded Configuration File"
Loaded Configuration File => /usr/local/php/etc/php.ini
$ vim /usr/local/php/etc/php.ini

2.修改 expose_php 将 On 改成 Off
3.重启php
4.打开浏览器检测,顺便用lynx在命令行中看下

$ lynx -head -mime_header http://localhost 
或者
$ lynx -head -mime_header http://server-address