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Perl module P412
Using CGI.pm
Exercises, examples and other material relating to training module P412. This topic is presented on public course Using Perl on the Web
The CGI.pm module provides a huge array of subroutines that enable you to handle CGI requests and generate HTML web pages in response without having to code down to the URL decoding and tag generation level yourself. Related technical and longer articles Handling Cookies through CGI.pm
Examples from our training material
Background information
Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from [here].
Topics covered in this module
Introduction.
Cautionary Notes. What does CGI.pm provide?. Using CGI.pm to produce your HTML. Using the Object Oriented interface of CGI.pm. Methods to produce HTML. Anchors and Images. Lists. Tables. Other HTML element support. Producing a form. Reading back form data. Debugging tools. State and cookies. What is state?. Maintaining state using CGI.pm and hidden fields. Issues with maintaining state. Using cookies to maintain state. Using CGI for cookies. A scheme for applications that maintain state. A shopping cart example. Other topics. Handling fields in multiple. The Environment. Handling special characters in output text. File upload. Further uses of header. Writing your own client (LWP). Complete learning
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