Content::addUserById

public function addUserById($userID)
{
	$userData = UserTable::getRow([
		'select' => ['ID', 'LOGIN', 'NAME', 'LAST_NAME', 'SECOND_NAME', 'TITLE'],
		'filter' => ['=ID'=> $userID]
	]);

	if(is_array($userData))
	{
		$value = \CUser::formatName(\CSite::getNameFormat(), $userData, true, false);
		$this->addText($value);
	}

	return $this;
}