}
public function setState($value)
{
$this->state = $value;
$this->setChanged();
$this->notifyObservers();
}
}
class ObserverFoo extends ObserverAbstract
{
public function update(ObservableInterface $observableObject, $arg)
{
echo 'Foo: ' . $observableObject->getState();
echo '<br/>';
}
}
class ObserverBar extends ObserverAbstract
{
public function update(ObservableInterface $observableObject, $arg)
{
echo 'Bar: ' . $observableObject->getState();
echo '<br/>';
}
}
$observableObject = new \Observable();
// hook observer
$observableObject->addObserver(new \ObserverFoo());
$observableObject->addObserver(new \ObserverBar());
// notify
$observableObject->setState('todo');
