September 2002
Intermediate to advanced
544 pages
13h 6m
English
Content preview from Sams Teach Yourself CGI in 24 Hours, Second Edition
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The Contents of the Shopping Cart
The cart.pl file is used to view the contents of shopping carts, and to allow users to remove items from the cart if they no longer intend to purchase them. If the script receives no parameters, it just retrieves the list of items in the user’s shopping cart and displays them. Each item in the cart is accompanied by a form that can be used to remove that item from the shopping cart. If the action parameter is set to remove,it attempts to remove the specified item from the cart. The full source code for the script appears in Listing 16.3.
Listing 16.3. The Source Code for cart.pl
1: #!/usr/local/bin/perl 2: 3: use strict; 4: 5: use CGI; 6: use CGI::Carp qw( fatalsToBrowser ); 7: 8: my $cart_file = "cart.txt"; ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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