Something

  package Apache2::Hello;
  use strict;
  use Apache2::RequestRec ();  # for $r->content_type
  use Apache2::RequestIO ();   # for $r->puts
  use Apache2::Const -compile => ':common';
  sub handler {
      my $r = shift;
      my $time = scalar localtime();
      my $package = __PACKAGE__;
      $r->content_type('text/html');
      $r->puts(<<"END");
  <HTML><BODY>
  <H3>Hello</H3>
  Hello from <B>$package</B>! The time is $time.
  </BODY></HTML>
  END
      return Apache2::Const::OK;
  }
  1;