use CGI::Enurl;
$href = 'script.pl?' . enurl({
  company => 'Smith & Jones',
  place => 'Brussels'
});

If you happen to have Interpolation.pm (0.68) you may do this:<code>
use CGI::Enurl;
use Interpolation '?:@->$' => sub { '?'.enurl({@_})};
print qq{<a href="script.pl$?{company => 'Smith & Jones', place => 'Brussels'}">click here</a>\n};