CAllForumSubscribe::CanUserDeleteSubscribe

static function CanUserDeleteSubscribe($ID, $arUserGroups, $CurrentUserID = 0)
{
	$ID = intval($ID);
	$CurrentUserID = intval($CurrentUserID);
	if (in_array(1, $arUserGroups)) return True;

	$arSubscr = CForumSubscribe::GetByID($ID);
	if ($arSubscr && intval($arSubscr["USER_ID"]) == $CurrentUserID) return True;
	return False;
}