Configuration::get

public function get($key, $defaultValue = null)
{
	if (isset ($this->data[$key]))
	{
		if ($this->data[$key] instanceof Closure)
		{
			return $this->data[$key]();
		}

		return $this->data[$key];
	}

	$option = $this->getOption($key);
	if ($option)
	{
		return $option->getValue();
	}

	return $defaultValue;
}