_limit = $limit;
}
// Methods for properties
// Getters and Setters
// Methods
public function Increment()
{
$this->_count++;
echo "Counter incremented to {$this->_count}
";
if($this->_count > $this->_limit)
{
$this->Notify();
}
}
public function Decrement()
{
$this->_count--;
echo "Counter decremented to {$this->_count}
";
}
public function Attach(IObserver $observer)
{
$this->_observers[] = $observer;
}
public function Detach(IObserver $observer)
{
$index = array_search($observer, $this->_observers, true);
if($index !== false)
{
array_splice($this->_observers, $index, 1);
}
}
public function Notify()
{
foreach($this->_observers as $observer)
{
$observer->Update($this);
}
}
}
?>