getParameterAs.php

protected function getParameterAs($key, $type, $default = null, $validation = ValidationType::None, $validationData = null)
{
	if (!isset($this->passedArgs[$key]))
	{
		return $default;
	}
	
	// NOTE: Not sure if this is needed, my PHP-fu is weak.
	$value = null;

	switch ($type)
	{
		case 'string':
			$value = strval($this->passedArgs[$key]);
			break;

		case 'int':
			$value = intval($this->passedArgs[$key]);
			break;

		default:
			// TODO: Throw exception or do something else that's useful...
			return $default;
			break;
	}

	if ($this->validateParameter($value, $validation, $validationData))
	{
		return $value;
	}
	
	return $default;
}