CSecurityUser::ActivateUserOtp

static function ActivateUserOtp($userId)
{
	/** @global CUser $USER */
	global $USER;

	if (!intval($userId))
		return false;

	if (
		$userId == $USER->GetID()
		|| $USER->CanDoOperation('security_edit_user_otp')
	)
	{
		$otp = static::getCachedOtp($userId);
		try
		{
			$otp->activate();
			return true;
		}
		catch (OtpException $e)
		{
			return false;
		}
	}

	return false;
}