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php 设置静态内容缓存时间

May 25, 2016 pm 04:46 PM

在利用百度工具作一个小测试时提示我们需要设置静态内容缓存时间了,我自己没有服务器权限操作,只能从其它方面入手了,自己学习php的我搜索后发现可以使用header函数来实现浏览器缓存页面的时间哦,具体如下。

设置静态内容缓存时间

$interval = 60 * 60 * 6; // 6 hours 
header ("Last-Modified: " . gmdate ('r', $max)); 
header ("Expires: " . gmdate ("r", ($max + $interval))); 
header ("Cache-Control: max-age=$interval");
Copy after login

我们把上面这段代码加到php文件开头处,下面来给大家详解说有一下这四行代码

如我的代码

Copy after login

第一行:$interval  告诉你设置6个小时了,这里大家可自定哦。
第二行:向客户端浏览器发送一个Last-Modified请求,这个会根据gmdate的参数r来调用对应的日期。
第三行:设置Expires过期时间了
第四行:设置Cache-Control 的 max-age=$interval日期了。

再测试结果为优秀了

 

php 设置静态内容缓存时间

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