code: public function getInput ($key)
  	{
  		$data = $this->getInputData ();
  		$data2 = $this->getRequestData ();
  		return isset ($data[$key]) ? $data[$key] : (isset ($data2[$key]) ? $data2[$key] : null);
  	}
docs: /*
  Return the value of the request
  or the input data.