TYPO3 Core

If a folder is tried to be created where currently a file is located, the following open_basedir warning is emitted:

PHP Warning: is_dir(): open_basedir restriction in effect. File(/srv/vhosts/…/site/mage/releases/…/public/fileadmin/…/) is not within the allowed path(s): (/srv/vhosts/…/site/:/usr/share/php/:/tmp/:/usr/bin/:/bin/:/usr/local/bin/:/usr/local/lib/) in /srv/vhosts/…/site/mage/releases/…/public/typo3/sysext/core/Classes/Utility/GeneralUtility.php line 1920

This can be verified via:

<?php
file_put_contents('foobar', '');
ini_set('open_basedir', __DIR__);
// OK
var_dump(is_file(__DIR__ . '/foobar'));
// OK
var_dump(is_dir(__DIR__ . '/foobar'));
// Not OK, warning
var_dump(is_dir(__DIR__ . '/foobar/'));