Совет

function ec($str, $die=false)
{
   if ($GLOBALS['USER']->GetID()==1)
   {
      if (is_array($str))
         {echo '<pre>';print_r($str);echo '</pre>';}
      else
         echo $str;

      if ($die !== false)
         {echo $die;die();}
   }
}

var_dump($APPLICATION):
object(CMain)...

foreach($arResult["ORDERS"] as $key => $val)
{
   foreach($val["BASKET_ITEMS"] as $vvval)
   {
      $rsEls = CIBlockElement::GetGetByID();
   }
}

foreach($arResult["ORDERS"] as $key => $val)
{
   foreach($val["BASKET_ITEMS"] as $vvval)
   {
      $arIDs[] = $vvval["PRODUCT_ID"];
   }
}

$rsEls = CIBlockElement::GetList(array(), array("ID" => $arIDs));
....

foreach($arResult["ORDERS"] as $key => $val)
{
   foreach($val["BASKET_ITEMS"] as $vvval)
   {
      //наполняем данные, налаживая соответствие ID-ков
   }
}

<script type="text/javascript">
   var cookiePrefix = '<?= COption::GetOptionString('main', 'cookie_name')?>_';
   var cookieExpire = '<?= date('r', time()+86400*30)?>';

   document.cookie = cookiePrefix + 'BLABLA=Y' + '; expires=' + cookieExpire + ' GMT; path=/';
</script>

if(defined('BX_COMP_MANAGED_CACHE'))
   $GLOBALS['CACHE_MANAGER']->ClearByTag('iblock_id_'.$arParams['IBLOCK_ID']);