AbstractShipStorage

Reminder :
Pay attention to the order of "require" in bootstrap.php.
AbstractShipStorage must be included before PdoShipStorage and JsonFileShipStorage.

Hi,

After the AbstractShipStorage i get the following error
"Argument 1 in de __constuct() must be an instance of AbstractShopStorage, array given, called in index.php on line 6"

In my index.php it's the following line:
"$container = new Container($configuration);"

So i don't quite get why i have this error.

Kind regards,

Emin

UPDATE

I accedently put in mu __construct AbstractShipStorage instead array so once i replaced those it works :)

Hey,

Since we're creating an AbstractShipStorage class, shouldn't the title of this video be: AbstractShipStorage?

Kind regards,

Ben

Why can't I make the concrete function getRadius() in AbstractPlanet like:

abstract class AbstractPlanet
{
    private $radius;

    abstract public function getHexColor();

    public function getRadius()
    {
        return $this->radius;
    }

}

SolidPlanet uses it just happily as-is.

GasPlanet stores radius as the property (rather than uselessly storing diameter - which seemed just to be different):

class GasPlanet extends AbstractPlanet
{
    private $mainElement;

    public function __construct($mainElement, $diameter)
    {
        $this->radius = $diameter / 2;
        $this->mainElement = $mainElement;
    }

    public function getHexColor()
    {
        // a "fake" map of elements to colors
        // code unchanged here
    }
}

But the exercise tells me that getRadius() must be declared abstract in AbstractPlanet. I thought that it was perfectly fine to have some concrete methods in an abstract class??
That would happen when there is a method body that applies appropriately to all (or most) subclasses that extend the abstract class.