use URI;
use strict;
use warnings;
my $hostname = 'localhost';
my $path = '/cgi-bin/details';
my $period = 4;
my $vid = 11;
my $person = 'abcdef';
my @args = ( period => $period, 
             vid    => $vid,
             person => $person );
my $url = URI->new("http://$hostname/");
$url->path($path);
$url->query_form( \@args );
print $url->canonical;