使用RecursiveDirectoryIterator对目录列表进行排序

问题描述

我正在使用RecursiveDirectoryIterator和RecursiveIteratorIterator来使用以下代码构建文件列表树.我需要对列表进行排序-目录然后按字母顺序或仅按字母顺序进行文件.

I'm using RecursiveDirectoryIterator and RecursiveIteratorIterator to build a file listing tree using code like below. I need to the list to be sorted - either directories then files alphabetically, or just alphabetically.

谁能告诉我如何对文件列表进行排序?

Can anyone tell me how to sort the file list?

$dir_iterator = new RecursiveDirectoryIterator($groupDirectory);
$iterator = new RecursiveIteratorIterator($dir_iterator, RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $file) {
    // do stuff with $file
}

推荐答案

使用Iterator本身是不可能的.我在SO上的某个地方看到了Iterator类的扩展，该扩展确实进行了排序，但是模糊地记得遇到了麻烦.

This is not possible using the Iterator itself. I have seen an extension to the Iterator class somewhere on SO that did sorting but remember hazily to have had trouble with it.

也许对此问题的答案有帮助，甚至尽管它们指向的是迭代器?

Maybe the answers to this question help, even though they point away from the Iterator?

更新:是您的问题的答案，有一些答案-虽然可以接受，但是数量不多！

Update: Here is a dupe to your question with some answers - admittedly not many, though!

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