RecursiveDirectoryIterator regression wrt. junctions

[LHavlicek]

Description

When loading files in $path using

<?php
$directory = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::FOLLOW_SYMLINKS);
$iterator = new RecursiveIteratorIterator($directory);
?>

PHP 8.1 on Windows (Windows 10) does not include files located in a folder that is a symlink (junction).

The unread folder is on the same disk and its symlink (junction) is inserted into $path.

If I view $directory using

<?php
foreach ($directory as $i) {
    var_dump($i);
}
?>

I can see the symlinked folders. But if I try to load the files using

<?php
foreach ($iterator as $i) {
    var_dump($i);
}
?>

the files located in the symlinked folder are no longer dumped. The files in the actual folders in $path are included.

In PHP 8.0 and below, everything is fine and the above code works.

Sorry for my English.

PHP Version

PHP 8.1.11

Operating System

Windows 10

[cmb69]

Thanks for reporting! The regression has been introduced by commit f323baa, where the change to RecursiveDirectoryIterator::hasChildren() apparently is not prepared to handle kind of hard-linked directories. I'll have a closer look.

[cmb69]

a folder that is a symlink (junction).

Junctions are not symlinks; they are more like hardlinks, but still different. If you want to create symlinked folders on Windows, use mklink /d. If the folders were symlinked, your script worked as intended; on junctions are broken as of PHP 8.1.0.

[angelcoding]

Hi. This bug has been causing me some headaches recently because composer only uses junctions on Windows for path based repositories and I have a third party CMS that uses RecursiveDirectoryIterator to scan those directories (without success).

Not sure if this is usual for PHP, but the above fix was added a year ago and nothing has happened since.
Is that fix likely to make it through soon?

Many thanks!