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Bug #81031 DirectoryIterator show duplicate listing on mergerfs
Submitted: 2021-05-11 22:35 UTC Modified: -
From: wowkise at gmail dot com Assigned:
Status: Open Package: *Directory/Filesystem functions
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
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From: wowkise at gmail dot com
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 [2021-05-11 22:35 UTC] wowkise at gmail dot com 
Description:
------------
Using DirectoryIterator on path that uses mergerfs[1] as underlying fs system causes the returned results to be duplicated.

Using other file system related scan function does not show the same problems. i.e. scandir works perfectly.

1: https://github.com/trapexit/mergerfs

Test script:
---------------
php -r 'foreach( new DirectoryIterator('/path/to/mergerfs') as $it) echo $it->getFilename().PHP_EOL;'

Expected result:
----------------
dir1
dir2
dir3


Actual result:
--------------
dir1
dir2
dir3
dir1
dir2
dir3

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