XML : Store xml tags in Variables in perl

Let's say I have a xml-File structured like this

  <_StoredUserInformation>      <UserName>          <WorkstationName>              <SessionID>                   This_Session              </SessionID>          </WorkstationName>      </UserName>  </_StoredUserInformation>    

And I want to store every value inside the xml Tags in my Variables, e.g. :

  $UserName = <UserName>  $SessionName = This_Session  etc...    

I Have tried doing it with ForceArray from XML::Simple, but I am having problems with sorting the keys afterwards. The KeyAttr from XML::Simple works appartely not with a Data Structure which is nested that much.

Any other suggestions how to solve this?