Maxim Tronenko (Все сообщения пользователя)

   AddEventHandler("iblock", "OnAfterIBlockPropertyUpdate", "ElementUpdateHandler");
   AddEventHandler("iblock", "OnBeforeIBlockElementUpdate", "ElementUpdateHandler");

   function ElementUpdateHandler(&$arFields)
   {
      file_put_contents("c:\\temp\\init.log", print_r($arFields,true), FILE_APPEND);
   }

                     $arrFields = array(   
                                    'IBLOCK_ID'=>$arRes['ID'],
                                    'NAME'=>'Оплата мероприятия',
                                    'PREVIEW_TEXT'=>'54321', 
                                    'DETAIL_TEXT'=>'12345', 
                                    'PROPERTY_VALUES'=>$arrProp);

                     $el = new CIBlockElement;
                     $id_payment = $el->Add($arrFields);

.....
   echo "Ошибка:".$el->LAST_ERROR;

    switch($arResult["MESSAGE_CODE"]
    {
    case "E02":
        ?><? //User was successfully authorized after confirmation
           
            $USER->Authorize($arResult["USER"]["ID"];
            LocalRedirect("/";

        break;
    case "E03":
        ?><? //User already confirm his registration   

            $USER->Authorize($arResult["USER"]["ID"];
            LocalRedirect("/";

        break;
    case "E06":
        ?><? //Confirmation was successfull
           
            $USER->Authorize($arResult["USER"]["ID"];
            LocalRedirect("/";

        break;

    case "E02":
        ?><? //User was successfully authorized after confirmation

        break;

$arrNew = array();

CIBlockElement::SetPropertyValuesEx($arFields['ID'], null, array('event_users' => $arrNew));