php 缓存设计
- WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOriginal
- 2016-06-13 09:55:311195browse
//本功能主要是利用文件修改时间函数filemtime与现在时间作减法判断是否更新内容。
$cahetime=2;//设置过期时间
$cahefile="cahe.txt";//读写文本
if(file_exists($cahefile) && time()-$cahetime
echo file_get_contents($cahefile);
}
else {
file_put_contents($cahefile,date("y-m-d H:i:s",time()));
}
?>
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