Like most programming languages, Perl knows about different varieties of data. In this tutorial we’ll explore the most common data types used in Perl:
- Scalars
- Arrays (lists)
- Associative arrays (hashes)
web programming
Writing a Simple Form Mailer
In this tutorial I’ll show you how to create a simple form mailer CGI script in Perl. A form mailer script allows you to add feedback forms to your site. Visitors fill in the forms, and the information they fill in is emailed to you.
Your First CGI Script
In this tutorial I’m going to show you how to write a very simple CGI script. I’ll also show you how to upload the script to your server, and get the script running.
Once you’ve mastered the technique of uploading this CGI script, you can use the same technique to install other CGI scripts too!
Controlling Program Flow in JavaScript
One of the key features of all good programming languages is the ability to control the order in which actions are performed. For instance, you may want to run one piece of code if the user has selected a checkbox, but run a different piece of code if they haven’t selected it. Or, you may want to run the same piece of code 10 times (for example, if you’re creating a drop-down list with 10 items).
In this tutorial you’ll learn how to write code to make decisions (e.g. “if the user has selected this checkbox, display this message”), and perform the same action many times (called “looping”).