I have a form that sends information using sendmail after the form is completed. I added a part where I want to make sure some variable is always submitted when calling the cgi page. This does work where it redirects if something isnt submitted. My question is $query an object instance of new CGI constructor? Trying to learn the object language. 
use CGI;
use strict;

my $query = new CGI;

unless(defined($subject))
{
     #redirect if someone enters www.mysite.here.cgi into the url
     print $query->redirect('http://www.mysite.here.htm');
     exit(0);
}

#mail sendmail program part here...

[download]
Also is this the most efficient way to make sure a variable exists before sending mail?

In reply to Redirect and using CGI constructor by Anonymous Monk

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