eXtropia: the open web technology company
Technology | Support | Tutorials | Development | About Us | Users | Contact Us
Resources
 ::   Tutorials
 ::   Presentations
Perl & CGI tutorials
 ::   Intro to Perl/CGI and HTML Forms
 ::   Intro to Windows Perl
 ::   Intro to Perl 5
 ::   Intro to Perl
 ::   Intro to Perl Taint mode
 ::   Sherlock Holmes and the Case of the Broken CGI Script
 ::   Writing COM Components in Perl

Java tutorials
 ::   Intro to Java
 ::   Cross Browser Java

Misc technical tutorials
 ::   Intro to The Web Application Development Environment
 ::   Introduction to XML
 ::   Intro to Web Design
 ::   Intro to Web Security
 ::   Databases for Web Developers
 ::   UNIX for Web Developers
 ::   Intro to Adobe Photoshop
 ::   Web Programming 101
 ::   Introduction to Microsoft DNA

Misc non-technical tutorials
 ::   Misc Technopreneurship Docs
 ::   What is a Webmaster?
 ::   What is the open source business model?
 ::   Technical writing
 ::   Small and mid-sized businesses on the Web

Offsite tutorials
 ::   ISAPI Perl Primer
 ::   Serving up web server basics
 ::   Introduction to Java (Parts 1 and 2) in Slovak

 

introduction to Perl 5 for web developers
What is Perl 5  
Perl 5 is the latest version in an ongoing evolution of the Perl language. The Perl 5 interpreter and language were released a few years ago to replace and upgrade the existing Perl 4 that had become the staple of many web developers.

By and large, as of 1998, most Internet Service Providers and systems administrators around the web have upgraded to Perl 5 so it should be available to you for web programming. If it has not been loaded onto your local system, you should direct your systems administrator to get the interpreter from http://www.perl.com/.

Perl 5 introduces a host of new features that are allowing Perl developers to keep pace with the demands of modern-day web applications development.

Specifically, Perl 5 introduces:

  • A new data type: the reference
  • A new localization tool: the my keyword
  • Tools to allow object oriented programming in Perl
  • An object oriented based library system focussed around "Modules"
  • New shortcuts such as "qw" and "=>"

Letís take a look at each of this new functions:

  • Note that Perl 4 is covered in Introduction to Web Programming. If you are not already familiar with Perl 4, you might want to go and read through that tutorial first as it covers basic Perl syntax.
Previous | Next | Table of Contents