I think you are just trying to construct the query segment of a URI, probably for a GET request. You probably intend to attach it to a base URI. May as well do both at the same time:

You could use a URI object:

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
[download]

Or you could construct the query param list without attaching it to a base URI by using URI::QueryParam like this:

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
[download]

Either construct handles proper escaping of embedded metacharacters for you automatically. And both of these examples use components of the same URI distribution, on CPAN.

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