Can't get list of files on directory with FTP adapter in PHP 8.3

[lanz1]

Bug Report

Q	A
Flysystem Version	3.23.1
Adapter Name	FTP
Adapter version	3.23.1

Summary

Can't get list of files on directory with FTP adapter in PHP 8.3

League\Flysystem\UnableToListContents ─── vendor/league/flysystem/src/UnableToListContents.php:17
│ Unable to list contents for '/{directory}', shallow listing Reason: array_sum(): Addition is not supported on type string

How to reproduce

Laravel 11 + PHP 8.3

$driver = Storage::createFtpDriver([
'host' => value,
'port' => value,
'username' => value,
'password' => value,
'throw' => true,
]);

$driver->files('path');

Possible fix

Locally can be fixed by casting values in FtpAdapter.php row 488 as:

return array_sum(array_map(fn ($permission) => (int) $permission, str_split($part)));

[ixperiencenl]

Same issue here on L11 and PHP8.3.4
league/flysystem-ftp ^3.6

Thanks for your fix

[mpe85]

@frankdejonge When will there be a release including this fix? Thank you

[frankdejonge]

Sorry for the delay, 3.28.0 is out now.