I know OO style of CGI programming is more accepted and is usually the way that examples of the CGI.pm are done. I have a lot of code that I maintain that is all written in the function-oriented style. Honestly, I didn't even realize that was what it was called until recently. I'm reading a lot of OO style examples that make sense, but I want to understand how to answer my question in function-oriented style.

I need to read in the parameters from a form and return another page based on the values of each parameter. The form elements are all radio buttons, so I don't have to worry about the multivalued null character issue here.

I'm unsure about importing CGI.pm routines into the script namespace and then how to use the param() method. I read something about using use CGI ':cgi-lib'; instead of use CGI qw(:standard) to be able to get the parameter list as a hash using Vars, but I don't understand that.

Something like this?

#!/usr/bin/perl -w
# tools.cgi

use CGI qw(:standard :cgi);  
use CGI::Carp qw(fatalsToBrowser);
require 'sri.conf'; 

%params = Vars; #getting the hash with the parameter list as the keys


# Print HTTP header and opening HTML tags.
print "Content-type: text/html\n\n";

# Print the top of the page
&print_file($action_header_file);

#this while is just an attempt to get the variable names and values to
+ print for my understanding, to be replace by other code using these 
+values

while (my ($variable_name, $variable_value ) = each %params) {
    print "Variable name = $variable_name/n Variable value = $variable
+_value\n\n";
}

# Print the bottom of the page
&print_file($action_footer_file);


sub print_file {
my($file_name) = @_; #name subroutine variables    
open(HEADER,"$file_name");
print <HEADER>;
close HEADER;
}

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TIA
~W

In reply to Function-oriented style CGI accessing form parameters by hmbscully

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