[ic] Looping through form variables in [perl] tag

[tom at readyink.com]

I should be able to do

[tmp][perl]
while (($key, $value) = each %CGI::values) { }

## or

foreach my $key ( keys %CGI::values ) {}
[/perl][/tmp]

because I see code like that in the core, but it doesn't work.  Can
someone tell me how to loop through the form variables?

thank you,
tom friedel