How to get the number of elements?

Question

1C-Bitrix

Good afternoon. Menu component code, result_modifier.php file

<?if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die(); 
if (!empty($arResult))
{
  $obCache = new CPHPCache();
  if ($obCache->InitCache($arParams['CACHE_TIME'], serialize($arFilter), "/template/menu"))
  {
    $arFormatted = $obCache->GetVars();
  }
  elseif ($obCache->StartDataCache())
  {
    \Bitrix\Main\Loader::includeModule("iblock");
    if(defined("BX_COMP_MANAGED_CACHE")) 
    {
      global $CACHE_MANAGER;
      $CACHE_MANAGER->StartTagCache("/template/menu");
    }
    
    $arSections = array();
    $arFilter = array('<=DEPTH_LEVEL'=> '3', 'ELEMENT_SUBSECTIONS' => 'Y');
    $res = CIBlockSection::GetList(Array(), $arFilter, true);
    while($arRes = $res->GetNext())
    {
      if(!$iblock_id) $iblock_id = $arRes['IBLOCK_ID'];
      $arSections[$arRes['NAME'].'_'.$arRes['DEPTH_LEVEL'].'_'.$arRes['SECTION_PAGE_URL']] = $arRes;
      $debug[] = $arRes;
    }

    $top_key = -1;
    $sub_key = -1;
    foreach($arResult as $key => $arItem): 
      $arItem['PARAMS']['ELEMENT_CNT'] = $arSections[$arItem['TEXT'].'_'.$arItem['DEPTH_LEVEL'].'_'.$arItem['LINK']]['ELEMENT_CNT'];
      
      switch ($arItem["DEPTH_LEVEL"]):
        case 1:
          $top_key++; 
          $arFormatted[$top_key] = $arItem;
          $sub_key = -1;
        break;
        case 2:
          $sub_key++; 
          $arFormatted[$top_key]["ITEMS"][$sub_key] = $arItem;			
        break;
        case 3:
          if($sub_key >= 0)
          {
            
            $arFormatted[$top_key]["ITEMS"][$sub_key]["ITEMS"][] = $arItem;
          }
        break;
      endswitch;
    endforeach; 
    if(defined("BX_COMP_MANAGED_CACHE")) 
    {
      if($iblock_id)$CACHE_MANAGER->RegisterTag("iblock_id_".$iblock_id);
      $CACHE_MANAGER->EndTagCache();
    }
    $obCache->EndDataCache($arFormatted);
  }
  $arResult = $arFormatted; 

}
echo "<pre style='text-align:left;'>";print_r($arResult);echo "</pre>";
?>

Help me please.

Answer 1

First, stop copulating the dead. For each task there is a separate tool, with strictly defined canons. What you do in result_modifier.php is done through the menu extension and the bitrix:menu.sections component .
Secondly, the number of active elements is obtained through the add. operations within an iteration. See reference literature: coder-diary.ru/programming/bitrix-kolichestvo-akti...