The usage of symbolic references isn't the cleanest way to implement variables named with respect to the passed parameter and in all likelihood will create many problems under strict usage. Indeed, the use of symbolic references has been discussed previously here and here.

Additionally, multiple parameters with the same name are permissable with CGI queries, but excluded by your code (by the unless $$key conditional).

An alternate method to perform something similar would be to use the code below that will result in passed values being stored in a hash indexed by the parameter name:

my $cgi = CGI->new;
my %param = map { $_ => $cgi->param($_) } $cgi->param();

[download]

This code allows you to perform similar variable assignment without the use of symbolic references.

Also, strongly consider use strict and -w.

 

Update : The advice of crazyinsomniac below with regard to $cgi->Vars is by far the better option to the map code above.

 

perl -e 's&&rob@cowsnet.com.au&&&split/[@.]/&&s&.com.&_&&&print'

In reply to Re: Creating vars from URI and printing %ENV by rob_au
in thread Creating vars from URI and printing %ENV by hacker

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