This bug has been sent by zyspec.
http://sourceforge.net/p/xoops/bugs/1272/

In this topic we can discuss it.

I can find too many functions in xoops dont have a meaningful return
they mainly have a return true
This bug is exist in new core functions too
eg: nearly all functions in moduleadmin class in Frameworks/moduleclasses/moduleadmin/moduleadmin.php

and one important function is addConfigBoxLine.
It always return true whether the chmod is ok or not ok or folder is exist or not exist
So one developer like me have to write a completely same function to find if chmod is ok or not.

So this bug needs more and more attention from core team.