use URI;

my %params = ( name => 'josh', age => 26 );

my $uri = URI->new('http://www.example.com');
$uri->query_form(%params);

print "$uri\n";

__END__
__OUTPUT__

http://www.example.com?name=josh&age=26

##</code><code>##

use URI::QueryParam;
use URI;

my %params = ( name => 'josh', age => 26 );

my $u = URI->new;
$u->query_param($_, $params{$_}) for keys %params;

print $u->query, "\n";

__END__
__OUTPUT__

name=josh&age=26