Mine

if (!in_array($vbulletin->userinfo['userid'], preg_split('#\s*,\s*#s', $vbulletin->config['SpecialUsers']['superadministrators'], -1, PREG_SPLIT_NO_EMPTY)) || !in_array($vbulletin->userinfo['6'])) {  
rpm_print_stop_back("You don't have permission to access this page.");