PrestwoodBoards: Perl Constants (use constant) (Perl)

	Perl Group Home
eMag: Perl Edition New/Updated Posts

	Message Board
MESSAGEBOARD Q&A Message Board -New Activity -Unanswered Threads -Most Active Threads -Most Read Threads

	Knowledge Base
KNOWLEDGEBASE Knowledge Base -New & Updated -Most Read -10 Min Quickstarts -Recent Comments Tech Articles Perl News File Library PERLTIDBITS: All as FlashCards Code Snippets FAQs Terms & Definitions

	Perl To/From
To/FromCODEGuides Perl To/From

	Perl Store
PRESTWOODSTORE Store Home Buy Perl Items

	Members Only
MEMBERSONLY Perl Member List Member Only KB Posts Perl Content Stats Random Article Random MB Thread Random Tidbit Random CrossRef Code MYGROUPSETTINGS My Group Settings

Prestwood Tip Jar
	Finding something useful? Add to the Tip Jar!

Prestwood eMagazine

Subscribe now!

Go To Random Article

From the August 2010 Issue of Prestwood eMag

Perl Constants (use constant)

By Mike Prestwood

7/15/2010

Perl Code Snippet:

To/From Code Guide: Perl Constants (use ... vs. Other Languages

A flashcard from our Perl Flashcards Library

A code snippet from our Perl Code Snippets Page

Tags: Perl , Constants , , Website Scripting, Perl

General Info: Computer Language Constants

A constant is just like a variable (it holds a value) but, unlike a variable, you cannot change the value of a constant.

Perl Constants

In Perl, you declare constants using the use constant keywords:

use constant CONST_NAME => "Value";

Constants in Perl are case sensitive. A common standard in Perl is to use all-uppercase letters, with underscores to separate words within the name.

Syntax Example:

use constant FULL_NAME => 'Mike Prestwood';
use constant AGE => 38;

print "Your name is " . FULL_NAME . ".<br>";
print "You are " . AGE . ".<br>";

More Info

Definition:

Computer Language Constants

Code Contributed By Prestwood staff member Mike Prestwood:

mprestwood►

Approved!

CA USA

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205.

Comments

0 Comments.

Would you like to comment? Reply? Ask a question? Say thanks?

Add Comment

KB Article #102184 Counter

144

Since 7/15/2010

Brought to you by Prestwood IT Solutions

We hope you are enjoying our knowledge base! We welcome your participation in our open online community. As the caretakers, we pay our staff to moderate, edit, and contribute free content here in an effort to promote our software development company. Keep us in mind if you or your company needs help. Whether you need a single developer or a team, consider Prestwood. We are an American company that keeps jobs in America (no off shoring and no need for H-1B developers). Our hope is that you will put some or all of your development tasks in our hands. We specialize in hourly help (1 hour minimum), custom websites from $2k to $40k, business database applications from $5k to $60k, and enterprise application development starting from $20k.

More Info

Talented Developer?
If you are a talented developer and would like to work with us, start by filling out our Register for Work form.