You have not instantiated a CGI object. Either use the :standard interface and do not use the $cgi object, or create a new CGI object and forego the :standard interface: 
use CGI;
my $cgi = new CGI;
my $field = $cgi->param('field');

# versus

use CGI ':standard';
my $field = param('field').

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In reply to Re: CGI PM by Fastolfe
in thread CGI PM by malaga

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