php枚举指定路径所有文件速度很慢怎么解决？-PHP Tutorial-php.cn

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php枚举指定路径所有文件速度很慢怎么解决？

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Jun 23, 2016 pm 01:33 PM

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？

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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