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Perl 101 (Part 5) - Sub-Zero Code  Perl 101 (Part 5) - Sub-Zero Code

 This Part 5 of the Perl 101 series introduces you to subroutines and teaches you how to structure your code for maximum reusability. Also included: return values, my() and local() constructs, and a marriage proposal....

Sorting Techniques  Sorting Techniques

 An introduction to sorting, and how to write your own sorting functions easily with perl. Includes some very common examples of sorts....
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Genetic algorithms applied with Perl  Genetic algorithms applied with Perl

 Based on the Darwinian principle of survival of the fittest, genetic programming uses mutation and replication to produce algorithms for creating ever-improving computer programs. In this column, you`ll get to know the genetic algorithm in simple terms. This article provides Perl implementations for some specific tasks, which you can adapt for generic use. To demonstrate the genetic algorithm, the author breeds numbers for fitness to a formula, and letters to form English words....

Untangling Lists and Hashes  Untangling Lists and Hashes

 In this Part 10 of "The Perl You Need to Know" series, you will be shown how to work with Perl`s list and hash data structures....

User Info  User Info

 This note describes how to get information about a remote user from within a CGI-bin script, and lists the information available....
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Benchmarking Perl  Benchmarking Perl

 In this Part 21 of "The Perl You Need To Know" series, it covers the Benchmark module the handy Perl stopwatch that allows you to time, optimize, and slim down on code....

Printing all CGI environment variables  Printing all CGI environment variables

 This article provides a short CGI program that can print every environment variable it knows....

CGI.pm Basics  CGI.pm Basics

 Tired of writing Perl code to parse form data? Take a leaf from the book of the experts and let CGI.pm do all the work for you. This article introduces you to CGI.pm`s powerful page construction and form parsing capabilities, with simple examples of how you can use it to simplify your Perl development....
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Debugging CGI Scripts  Debugging CGI Scripts

 Hints and tips on debugging Perl CGI scripts and identifying some possible causes of server errors....

Common Server Errors and Messages  Common Server Errors and Messages

 Find out what those server response codes like 401, 404, 500 mean. It can help you troubleshoot minor problems - knowing these are a must if you`ll be working on programs that run on a server....

CGI Environmental Variables  CGI Environmental Variables

 One of the methods that the web server uses to pass information to a cgi script is through environmental variables. These are created and assigned appropriate values within the environment that the server spawns for the cgi script. This page highlights some of the most commonly used ones, along with a brief description and notes on possible uses for them....

Debugging CGI Scripts 101  Debugging CGI Scripts 101

 These are a few guidelines to help you solving problems with your CGI Script. Topics include: Short overview of the CGI calling process, Server Errors - The server fails to execute the CGI, Logical Errors (Errors in the program flow), and more....

Configuring CGI Scripts  Configuring CGI Scripts

 This tutorial tackles one of the most common newbie questions, how to install your regular joe CGI Script....

Common Beginners Mistakes  Common Beginners Mistakes

 This is a list of common mistakes that people make when writing Perl scripts and suggestions on how to fix them. Included are general help tips on how to debug - very important particularly for beginners at programming. This list is based on the author`s personal experience and complaints found on newsgroups/message boards....

Tom`s object-oriented tutorial for perl  Tom`s object-oriented tutorial for perl

 This is a comprehensive tutorial on object-oriented programming in Perl. Some of main topics include: Creating a Class, Class Data, Aggregation, Metaclassical Tools, and more....

Using CGI::Application  Using CGI::Application

 The author writes "CGI::Application builds upon the bedrock of CGI, adding a structure for writing truly reusable Web-applications. CGI::Application takes what works about CGI and simply provides a structure to negate some of the more onerous programming techniques that have cast an unfavorable light upon it. CGI::Application code is so universal and non-proprietary that it works exceedingly well on any operating system and Web server that supports Perl and CGI. The CGI::Application structure makes it possible for authors to distribute, for the first time, fully functional and sophisticated Web-applications via CPAN....

The elegance of JAPH: Just Another Perl Hacker  The elegance of JAPH: Just Another Perl Hacker

 A mainstay of the Perl culture, JAPH is a short script that produces the output "Just another Perl hacker." Although written for the beginner or intermediate Perl programmer, this article examines a few simple examples of the JAPH genre that will surprise and engage even the most seasoned devotee....

Perl Modules Docs  Perl Modules Docs

 Documentation for the more common Perl modules. A must read for all Perl programmers and developers. This is a FREE service....

Perl Tutorials - Name Spaces and Perl Module Files  Perl Tutorials - Name Spaces and Perl Module Files

 This provides tutorial examples and notes about Perl module files and name spaces. Topics include using require() and do() functions to include other script files, using `package` statement to declare new name spaces; creating new Perl modules in *.pm files....

 

 

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