You might want to use CGI.pm as it was intended. The following example is taken from "CGI Programming with Perl, Second Edition": 
#!/usr/bin/perl -wT

use strict;
use CGI;

my $q = new CGI;
print $q->header( "text/plain" );

print "These are the parameters I received:\n\n";

my( $name, $value );

foreach $name ( $q->param ) {
    print "$name:\n";
    foreach $value ( $q->param( $name ) ) {
        print "  $value\n";
    }
}

[download]
Which we would change as following to fit your example: 
use CGI;

my $q = new CGI;

print $q->header( "text/html" );

if ( $q->param() ) 
{
    if( $q->param( $name ) )
    {
        if( $q->param( $email ) )
        {
            if( exists $emails{$q->param( $email )} )
            {
                print "<center><b>Email already exists in database.</b
+></center>\n";
            }
            else
            {
                $emails{$q->param( $email )} = "$info";
                print "<center><b>Your information was added to our sy
+stem!</b></center>\n";
            }
        }  # you missed this closing brace
        else 
        {
            print "Email was missing";
            exit;
        }
    }
    else
    {
        print "Name was missing";
        exit;
    }
}

[download]

And last but not least, you might want to write your code so that you can see easily when you are missing an opening/closing code block brace.

/oliver/

PS: You might want to check the information you add to the emails hash for validity.

Hans: Not ze problem!

In reply to Re: Form param checking by neuroball
in thread Form param checking by Anonymous Monk

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