<open filehandles here ...>
my @global_filehandles = qw(STDOUT STDERR FILE);

printh("look mom, printed to 3 filehandles!\n");


sub printh {
   my $text = shift;
   foreach my $fh (@global_filehandles) {
      no strict 'refs';
      print $fh $text;
      use strict;
   }
}