Solved

OOP Programming Beginner - How do I make this class work?

Posted on 2014-01-28
4
302 Views
Last Modified: 2014-01-28
I'm strating at the beginning and trying to get my brain around OOP. I've got an "OOP for Dummies" in front of me and going through it one exercise at a time.

There's one example that they use and while they use it to illustrate the scaffolding of a class, they don't show how it would actually be used to generate a message, and I want to figure that out.

Here's my class:

class MessageHandler {
      private $message;
      function _construct($message)
      {
            $this->message = $message;
      }
      function displayMessage()
      {
      echo $this->message."/n";
      }
}

In my HTML, I start by instantiating the class...

$the_message = new MessageHandler;

...and then, that's where it seems to stop.

If I wanted to say "Welcome to the wonderful world of OOP!" how would I do that using my class?
0
Comment
Question by:brucegust
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 110

Accepted Solution

by:
Ray Paseur earned 500 total points
ID: 39815338
$thing = new MessageHandler('wELCOME...');
$thing->DisplayMessage();
0
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 39815351
Darn it, Caps Lock.  The most useless key on the keyboard.  But that aside, the example is still structurally correct.

However I would check the date and quality of the learning resource you're using.  In PHP OOP, you can and should designate the visibility of the methods (methods == functions).

Our colleague gr8gonzo has these articles to help you get going:

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_2626-Beginning-Object-Oriented-Programming-in-PHP.html

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_2631-Advanced-Object-Oriented-Programming-in-PHP.html
0
 

Author Closing Comment

by:brucegust
ID: 39815506
Thanks, Ray!
0
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 39815802
Glad to help.  You'll have more OOP questions, I'm sure.  We will be here! ~Ray
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Part of the Global Positioning System A geocode (https://developers.google.com/maps/documentation/geocoding/) is the major subset of a GPS coordinate (http://en.wikipedia.org/wiki/Global_Positioning_System), the other parts being the altitude and t…
Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question