Description:
------------
WHen i want to iterate a specific folder in my project it ends up using the parent directory.

This happens only on the path used in the test script. Other paths are fine.




Test script:
---------------
/**
* Document root in my case is /home/www/dev/my_project/public
*/ 

$system = new \DirectoryIterator($_SERVER["DOCUMENT_ROOT"] .  "/../system");
echo $system->getRealPath();
echo $system->getPath();


Expected result:
----------------
Expected result would be with the given case:
Realpath: /home/www/dev/my_project/system
Path: /home/www/dev/my_project/public/../system

Actual result:
--------------
Actual result with the given case:
Realpath: /home/www/dev/my_project
Path: /home/www/dev/my_project/public/../system/..