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Full Discussion: Can't get my head wrapped around CGI/Perl
Top Forums Shell Programming and Scripting Can't get my head wrapped around CGI/Perl Post 302280253 by sennex on Monday 26th of January 2009 10:57:42 AM
Old 01-26-2009
Below the code is a rough breakdown of the TXT file I am pulling in from.
I ran a basic perl -c on this to see any syntax errors, and I got back a
"Global symbol "@semm_count" requires explicit package name at Line 24.

So I apparently have that variable set wrong, but I am not sure how. I am missing some larger piece and not sure what it is or how to get it to click in my head, I am thinking about this way to much. SQL wasn't this hard to pick up and neither was Flash or Javascript

All I need to get this to do is display:

Seminar Name: Number registered:
1 2
2 3
3 1
4 2
total Students registered: 8

Code:
#!c:/perl/bin/perl.exe
#super.cgi - saves form data to a file, and creates a dynamic
#Web page that displays a message and survey statistics
print "Content-type: text/html\n\n";
use CGI qw(:standard);
use strict;

#declare variables
my ($name, $semm, @records);
#my @semm_count = (0, 0, 0, 0);
my %semm_count = ("1", 0,
				  "2", 0,
				  "3", 0,
				  "4", 0);

#calculate survey statistics
open(INFILE, ">>", "c05ex5.txt")
	or die "Error opening c05ex5.txt. $!, stopped";
@records = <INFILE>;
close(INFILE);
foreach my $rec (@records) {
	chomp($rec);
	($name, $semm) = split(/,/, $rec);
	$semm_count[$semm] = $semm_count[$semm] + 1;
	}

#generate HTML acknowledgment
print "<HTML><HEAD><TITLE>WKRK-TV</TITLE></HEAD>\n";
print "<BODY>\n";
print "<H2>Seminar Total</H2>\n";

print "<TABLE>\n";
print "<TR><TD>Seminar</TD>    <TD>Total</TD></TR>\n";

foreach my $key ("Computer Maintenance", "Microsoft Office", "Unix Essentials", "CGI/PErl") {
	print "<TR><TD>$key</TD> <TD>$semm_count{$key}</TD></TR>\n";
	}

print "</TABLE>\n";
print "</BODY></HTML>\n";


Text file:
StudentA,1
StudentB,2
StudentC,3
StudentD,4
StudentE,1
StudentF,2
StudentG,2
StudentH,4


 

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LEARN ABOUT DEBIAN

cgi::application::plugin::dbiprofile::graph::svgtt

CGI::Application::Plugin::DBIProfile::Graph::SVGTT(3pm) User Contributed Perl DocumentationCGI::Application::Plugin::DBIProfile::Graph::SVGTT(3pm)

NAME

       CGI::Application::Plugin::DBIProfile::Graph::SVGTT - SVT::TT::Graph::Bar Graph output for CAP:DBIProfile.

SYNOPSIS

	   # in httpd.conf
	   SetVar CAP_DBIPROFILE_GRAPHMODULE CGI::Application::Plugin::DBIProfile::Graph::SVGTT
	   PerlSetVar CAP_DBIPROFILE_GRAPHMODULE CGI::Application::Plugin::DBIProfile::Graph::SVGTT

	   # in your CGI::Application subclass (needed to install callback)
	   use CGI::Application;
	   use CGI::Application::Plugin::DBIProfile::Graph::SVGTT;

DESCRIPTION

       This module provides a SVG::TT::Graph::Bars graphing option for CAP:DBIProfile.

       This also provides an example of non-inline graphs for DBIProfile.

       The following settings control the output:

       $CGI::Application::Plugin::DBIProfile::Graph::SVGTT::WIDTH
	   Width of output image.

       $CGI::Application::Plugin::DBIProfile::Graph::SVGTT::HEIGHT
	   Height of output image.

REQUIREMENTS

       SVG::TT::Graph

SEE ALSO

       SVG::TT::Graph::Bar
       CGI::Application::Plugin::DBIProfile
       CGI::Application::Plugin::DBIProfile::Graph::HTML

AUTHOR

	   Joshua I Miller, L<unrtst@cpan.org>

COPYRIGHT &; LICENSE
       Copyright 2007 Joshua Miller, all rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.12.4							    2011-11-10		   CGI::Application::Plugin::DBIProfile::Graph::SVGTT(3pm)
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