varible is empty when I call a function from a class

[dannyman1234]

Hi im a beginner in OOP php5 and I hope someone can help.

 

I made a class House

 

class House {

 

public $AI;

private $MAP;

 

 

public function getAI($photo_AI) {

return $this->AI;

}

 

public function getMAP() {

}

 

}

 

THen in index.php

 

require 'phpclasses/class_lib.php';

 

 

$house = new House();

echo $house->get_AI($_GET['photo_AI']);

 

link: http://localhost/composeyourhouse/site/index.php?photo_AI=1.jpg

 

The thing is that $house->get_AI is empty. What am I doing wrong and how can I make effective use of OOP in this case, because I can do echo $_GET['photo_AI']; which gives the same result.

 

Thanks

Edited June 30, 2009 by dannyman1234

[BeeDev]

You have to make another function called setAI which "sets" a value to that newly created House object. getAI should be only GETting a value, and not SETting one.

 

public function setAI($photo_AI)
{
   $this->AI=$photo_AI;
   return true;
}

 

and you getAI function shouldn't be taking $photo_AI parameter because it won't need it. Your getAI function should look like this

 

public function getAI()
{
   return $this->AI;
}

 

you may want to make a "constructor" function, which automatically runs when you create a new object.

Read about it here:

 

http://www.killersites.com/forums/topic/1732/new-oop-php-question/