CCaptcha::CheckCaptchaCode

function CheckCaptchaCode($userCode, $sid, $bUpperCode = true)
{
	global $DB;

	if ($userCode == '' || $sid == '')
		return false;

	if ($bUpperCode)
		$userCode = mb_strtoupper($userCode);

	$res = $DB->Query("SELECT CODE FROM b_captcha WHERE ID = '".$DB->ForSQL($sid,32)."' ");
	if (!$ar = $res->Fetch())
		return false;

	if ($ar["CODE"] != $userCode)
		return false;

	CCaptcha::Delete($sid);

	return true;
}