How to set empty value for option in LWP-Get-Form

0x2A has asked for the wisdom of the Perl Monks concerning the following question:

I am facing a problem when trying to GET a form with an option with an empty value. I.e. option1 has no value, option2 is 128 and option3 is 42.

$url = "http://host/index.php?option1=&option2=128&option3=";
$option3 = 42;

$response = $useragent->get( $url . $option3 );
[download]

This works fine but is not very readable. So I tried the following:

$url = "http://host/index.php";
$option3 = 42;

$response = $useragent->get(
                $url,
                  'option1' => '',
                  'option2' => 128,
                  'option3' => $option3,
);
[download]

This does not work. I tried '', undef and nothing as value of option1. None of this work. Can anyone tell me how to set an empty value for option1, please?

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Re: How to set empty value for option in LWP-Get-Form by Aristotle (Chancellor) on Feb 24, 2006 at 20:55 UTC
Errm, passing additional parameters to `get` sets them as headers in the HTTP request, not as parameters in the URI. Use URI to do stuff like that. `my $option3 = 42; my $uri = URI->new( 'http://host/index.php' ); $uri->query_form( option1 => '', option2 => 128, option3 => $option3, ); $response = $useragent->get( $uri );` [download] Makeshifts last the longest.	[reply] [d/l]
Re^2: How to set empty value for option in LWP-Get-Form by 0x2A (Initiate) on Feb 25, 2006 at 11:05 UTC
Oh, this was a great mistake! LOL! Got confused by the syntax for POST forms, I think. With URI it works fine now. Thanks for enlightenment, monk. ;)	[reply]