How to get the number of Highloadblock Bitrix rows?

Question

PHP

Good afternoon, on the page I display the related elements of the directory using the code below, but I can’t figure out how to get the selected number of rows from the table?

<?php
CModule::IncludeModule("highloadblock");
use Bitrix\Highloadblock as HL;
use Bitrix\Main\Entity;
$HL_ids 			= array(1,2,3,4);
$HL_id 				= 2;
$HL_block 			= HL\HighloadBlockTable::getById($HL_id)->fetch();
$HL_entity 			= HL\HighloadBlockTable::compileEntity($HL_block);
$HL_e_class 			= $HL_entity->getDataClass();

$HL_data = $HL_e_class::getList(array(
   "select" 		=> array("ID", "UF_NAME", "UF_FULL_DESCRIPTION"),
   "order" 		=> array("UF_SORT" => "ASC"),
   "filter" 		=> array("ID" => $HL_ids)
));

// $HL_count = ???

while($arData = $HL_data->Fetch())
{
  echo $arData['ID'].'<br>';
}

Thank you.

Answer 1

Result::getSelectedRowsCount()