HTTP Referer是header的一部分，当浏览器向web服务器发送请求的时候，一般会带上Referer，告诉服务器我是从哪个页面链接过来的，服务器籍此可以获得一些信息用于处理。比如从我主页上链接到一个朋友那里，他的服务器就能够从HTTP Referer中统计出每天有多少用户点击我主页上的链接访问他的网站。
下面看看如何去掉header中的referer信息
<iframe src="auto-refresh.html" width="500" height="500" rel="noreferrer"></iframe>
auto-refresh.html content:
<span><span>html</span><span>></span> <span><span>head</span><span>></span> <span><span>meta </span><span>name</span><span>="referrer"</span><span> content</span><span>="never"</span><span>></span> <span><span>meta </span><span>http-equiv</span><span>="refresh"</span><span> content</span><span>="0;url=http://xxx.xxx.xxx"</span><span>></span> <span></span><span>style</span><span>></span> <span></span><span>head</span><span>></span> <span><span>body</span><span>></span><span>body</span><span>></span> <span></span><span>html</span><span>></span></span></span></span></span></span>
The referer information can be removed.
The above introduces how to remove the referer information in the header, including the content of removing the referer information. I hope it will be helpful to friends who are interested in PHP tutorials.
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