列出最后一级的文件夹和子文件夹php

Question

我需要监视目录中是否有空文件夹，以便为用户生成警报。

由于infra的原因，我想在php中执行的这个脚本将每天运行一次。

我找到了几个例子，但没有一个能帮助我列出最后一层的空文件夹。

示例：

Root / Folder1 / year / month / file.pdf
Root / Pasta2 / year / month

在文件夹2中，我知道它是空的，我需要得到所有这些箱子。

我试过了

$di = new RecursiveDirectoryIterator('../Vistorias/');
foreach (new RecursiveIteratorIterator($di) as $filename => $file) {
    echo $filename . ' - ' . $file->getSize() . ' bytes <br/>';
}

结果：

../Vistorias/. - 256 bytes 
../Vistorias/.. - 416 bytes 
../Vistorias/.DS_Store - 14340 bytes 
../Vistorias/Pasta-3/. - 64 bytes 
../Vistorias/Pasta-3/.. - 256 bytes 
../Vistorias/Paste-2/. - 64 bytes 
../Vistorias/Paste-2/.. - 256 bytes 
../Vistorias/Pasta-1/. - 160 bytes 
../Vistorias/Pasta-1/.. - 256 bytes 
../Vistorias/Pasta-1/.DS_Store - 6148 bytes 
../Vistorias/Pasta-1/Sub-pasta-1-a/. - 96 bytes 
../Vistorias/Pasta-1/Sub-pasta-1-a/.. - 160 bytes 
../Vistorias/Pasta-1/Sub-pasta-1-a/export.pdf - 3959 bytes 
../Vistorias/Pasta-1/vazia/. - 64 bytes 
../Vistorias/Pasta-1/vazia/.. - 160 bytes 

我希望得到这样的回报：

../Vistorias/Pasta-3/. - 64 bytes 
../Vistorias/Paste-2/.. - 256 bytes 
../Vistorias/Pasta-1/Sub-pasta-1-a/export.pdf - 3959 bytes 
../Vistorias/Pasta-1/vazia/. - 64 bytes 
../Vistorias/teste/. - 96 bytes 
../Vistorias/teste/trigo.png - 1727287 bytes 

所以我知道下面的文件夹是空的：

../Vistorias/Pasta-3/. - 64 bytes 
../Vistorias/Paste-2/.. - 256 bytes 

有什么想法吗？

Answer 1

这样如何-从文件名中提取路径，使用该路径作为数组的键，并汇总您遇到的目录条目的数量。对于空目录，由于条目.和..，该计数将为2。因此，任何其他具有不同计数的对象都可以使用array_filter从最终数组中删除。

$di = new RecursiveDirectoryIterator('../Vistorias/');
$folders = [];
foreach (new RecursiveIteratorIterator($di) as $filename => $file) {
    $path = pathinfo($filename, PATHINFO_DIRNAME);
    // entry for path either already exists, then add one - or initialize with 1
    $folders[$path] = isset($folders[$path]) ? $folders[$path] + 1 : 1;
}
// filter all entries with a count != 2, and apply array_keys
// to get the folder names, which are currently the keys, to become the values
// again in the final result
$folders = array_keys(array_filter($folders, function($count) { return $count == 2; }));