Uploader::getRequest

protected function getRequest($key)
{
	if ($this->requestMethods["post"] &&
		is_array($this->request->getPost(self::INFO_NAME)) &&
		array_key_exists($key, $this->request->getPost(self::INFO_NAME)))
	{
		$res = $this->request->getPost(self::INFO_NAME);
		return $res[$key];
	}
	if ($this->requestMethods["get"] &&
		is_array($this->request->getQuery(self::INFO_NAME)) &&
		array_key_exists($key, $this->request->getQuery(self::INFO_NAME)))
	{
		$res = $this->request->getQuery(self::INFO_NAME);
		return $res[$key];
	}

	return null;
}