The Visibooks advisor to PERL fundamentals is helping novices tips on how to create interactive websites utilizing the PERL programming language.It offers a company beginning within the basics of machine programming.

Show description

Read Online or Download The Visibooks Guide to PERL Basics PDF

Similar programming: programming languages books

Essential Java Fast : How to write object oriented software for the Internet

Java is a brand new and intriguing object-oriented programming language that's set to rework the realm broad net. Java permits clients to write down purposes that are accessed throughout assorted structures and gives an efficient technique of construction small yet strong courses that allow an enormous diversity of recent purposes - resembling animation, dwell updating, two-way interactions and so on.

Designing SQL Server 2000 Databases. for .Net ™ Enterprise Servers

The Microsoft . internet initiative is the way forward for e-commerce - making it attainable for firms to construct a safe, trustworthy e-commerce infrastructure. this is often the 1st e-book to stipulate the functions of SQL Server 2000, one of many key parts of . internet. SQL Server 2000 introduces robust new information mining performance designed in particular to trap and method patron profiles and to foretell destiny purchasing styles on e-commerce websites.

Extra info for The Visibooks Guide to PERL Basics

Sample text

Click the link. The output should look like this: 30 LEARNING THE BASICS Insert comments 1. /usr/bin/perl print "Content-Type: text/html \n\n"; # This is a simple script with comments # that explain what the code does. # These comments do not affect the way # the script works. "; # You # can even put comments on the same line # as executable code. LEARNING THE BASICS 31 Tip: If you’re writing a comment in a script and it wraps to the next line, it needs a new # character in front. Incorrect: # The second line lets a browser display the script output.

LEARNING THE BASICS 27 3. html into the home directory of your Web site. html into the /cgi-bin/perlscripts directory. html—resides. 28 LEARNING THE BASICS 4. html LEARNING THE BASICS 29 5. Click the link. The output should look like this: 30 LEARNING THE BASICS Insert comments 1. /usr/bin/perl print "Content-Type: text/html \n\n"; # This is a simple script with comments # that explain what the code does. # These comments do not affect the way # the script works. "; # You # can even put comments on the same line # as executable code.

The first specifies the path to your Web server’s PERL module. The second tells the browser that what comes after this line is HTML. 48 WORKING WITH VARIABLES • $cars_on_lot = 100; $cars_on_lot is the single (scalar) variable. Scalar variables start with a $. The number 100 is assigned to the variable. The number is easy to change—that’s why it’s called a variable.

\n"; These lines should also look familiar. They’re HTML code like we’ve used before, but with a difference: $cars_on_lot. This variable tells the Web browser to get the number specified (100) and insert it here.

Download PDF sample

Rated 4.03 of 5 – based on 25 votes