I am trying to integrate Q&A to my wiki site.
I have set edited /qa-external/qa-external-users.php
and set if (USE_LOGIN_LINKS)
'login' => '../index.php?title=Special:UserLogin redirect=".urlencode("qa/".$redirect_back_to_url)',
but how do I get $redirect_back_to_url to actually get the URL. At the moment it just says $redirect_back_to_url which gives an error as the page doesn't exsit.