php枚举指定路径所有文件速度很慢怎么解决？
php枚举指定路径所有文件速度很慢怎么解决？能不能不存到数据库中就行。
回复讨论(解决方案)
一要看你的具体需求
二要看你的代码是怎么写的
你可以第一次把所有文件遍历一遍，然后组成一个数组，变成json写在一个单独的文件中，如果目录有更新 就把这个json文件删掉重新生成，需要遍历的时候直接把json文件打开decode一下就好了
我想做的是打开一个页面，页面会查询指定路径内的所有文件并存放到一个数组中，然后在页面显示。但问题是每次打开页面或者刷新页面，页面都会查询所有文件存放到数组中才会在页面显示。所以速度很慢，我想找一种方法，让它可以定期更新我的数组，每次我的页面只需要显示数组就可以了，所以我想问，这个json文件我怎么构造呢？
我想做的是打开一个页面，页面会查询指定路径内的所有文件并存放到一个数组中，然后在页面显示。但问题是每次打开页面或者刷新页面，页面都会查询所有文件存放到数组中才会在页面显示。所以速度很慢，我想找一种方法，让它可以定期更新我的数组，每次我的页面只需要显示数组就可以了，所以我想问，这个json文件我怎么构造呢？
file_put_content
你先把你第一读出来的数组 json_encode 然后写入到一个文件 然后每次读取的时候 判断下这个文件的创建时间 如果在指定时间内 就读取这个json文件内容 如果不在时间内 就重新读取 重新生成
实现了。谢谢
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