Advanced Question - Class cannot store variable

[jaycode]

Hi, I created this class in admin/includes/classes:

    class Designer{
        var $attributes, $values;
        
        function Designer($values = "") {
        $attributes = explode(",",DB_DESIGNERS_ATTRIBUTES);
        print_r($attributes);
            if (!is_array($values)) {
                $values = str_replace(" ", "", $values);
                $values = explode(",", $values);
            }
            $this->values = $values;
            return true;
        }
        
        function getDesignerAttributes() {
            echo $attributes;
            print_r($attributes);
            return $attributes;
        }
        ...
    }

And I am trying to use that class in my own page, say admin/gallery.php:

$new_designer = new Designer($values);
$a = $new_designer->getDesignerAttributes();
echo($a);
print_r($a);

Why even though I have written this colored codes, this colored commands didn't return any value, but this colored commands return the correct values.

I hope people from the development team can help with this, and I need this help kinda fast, so pleeease if you have any reply, don't hesitate ok...

thanks guys

[DrByte]

The $attributes variable inside each function(method) is considered "private", but you're trying to call it publicly.

Inside each of your functions, reference $attributes as $this->attributes instead. That uses the class's $attributes variable instead of the private one inside the function.

[jaycode]

OK got it, instead of using $attributes I use $this->attributes and it works!

Maybe because in strict writing mode, PHP doesn't accept that?

[jaycode]

Thanks a lot Dr. Byte ure my hero

[DrByte]

OK got it, instead of using $attributes I use $this->attributes and it works!

Maybe because in strict writing mode, PHP doesn't accept that?

That's the way PHP works. Variables are local in scope unless declared global. And declaring global is not the preferred approach.
Within a class (or object), you refer to the class's(object's) variables via $this->; otherwise you'd need to pass variables back and forth between methods using parameters ... which isn't always the right thing to do either, depending on your needs.