Translate code from working vBulletin 4 to vBulletin 5

I want to check for membership in external html-files. I have working code for vb4 and need it for vb5 Examplecode that works in Vb4 chdir("../forum/"); include ('./[login to view URL]'); if (is_member_of($vbulletin->userinfo, 6)) { $username = $bbuserinfo['username']; $usergroupid = $bbuserinfo['usergroupid']; HERE i put my code that you have to be member to get end if ------------------------ I want this to work with vBulletin5