The $data field is optional; it lets you pass configuration information (e.g. a database handle) to your hook callback.

What you're trying to do is not what this was intended for, but you may be able to work around with QUERY_STRING 

my $q = CGI->new($ENV{QUERY_STRING});
$data = $q->param('chicken');
$data = $1 if $data =~ //;# untaint chicken
$q = CGI->new(\&hook, $data);

[download]
as long as action is /foo/bar.cgi?chicken=ididid QUERY_STRING will always contain your chicken

In reply to Re: Passing database ID to \&hook through $data (CGI) by Anonymous Monk
in thread Passing database ID to \&hook through $data (CGI) by k2OS

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