package OOtest;
sub new {
   my $invoker = shift;
   my $class = ref($invoker) || $invoker;
   my $self  = {};
   bless ($self, $class);
   $self->{list}  = [];
   return $self;
}

sub get_array {
   my $self = shift;
   return $self->{list};
}

##</code><code>##

my $obj = OOtest->new();
# NOT foreach my $tmp ( @{ $obj->list() } 
foreach my $tmp ( @{ $obj->get_array() } ) {
   # process list
}

##</code><code>##

package OOtest;
sub new {
   my $invoker = shift;
   my $class = ref($invoker) || $invoker;
   my $self  = {};
   bless ($self, $class);
   $self->{list}  = ();
   return $self;
}

sub get_array {
   my $self = shift;
   return values %{$self->{list}}; # anything asking for an array gets it
}