Using cgi-lib.pl to get HTML form field/value pairs into
%array, it's sometimes useful to do something like this:
foreach $key (keys(%array)){
$$key = $array{$key};
}
In this way, you can call form data by $Email rather than, say,
$array{'Email'}. However, I've seen hints that $$var is
a bad idea and/or deprecated. Is there a better way to do the
same thing?