Bitrix ORM - Быстрые наброски для получения элементов и разделов

iblockItems.php

<?
use \Bitrix\Main\Loader;
use \Bitrix\Iblock\Iblock;

Loader::includeModule("iblock");

$result = [];
$iblockId = 1;
$iblockProjects = \Bitrix\Iblock\Iblock::wakeUp($iblockId);
$iblockProjectsEntity = $iblockProjects->getEntityDataClass();
// Или
$items = \Bitrix\Iblock\Elements\Element{CODE_API}Table::query()
    ->where('SECTION.ID', 64)
    ->addSelect('ID')
    ->fetchCollection();

section.php

<?
use \Bitrix\Main\Loader;
use \Bitrix\Iblock\Model\Section;

Loader::includeModule("iblock");

$result = [];
$iblockId = 2;

$entitySection = \Bitrix\Iblock\Model\Section::compileEntityByIblock($iblockId);

// Фильтр
$filterProject = [
    'IBLOCK_ID' => $iblockId,
    'ACTIVE'    => 'Y',
];

$sections = $entitySection::getList([
    'filter' => $filterProject,
    'select' => [
        'ID',
        'NAME',
        'PICTURE',
        'DESCRIPTION',
        'UF_TYPE',
        'UF_SUBTITLE',
    ],
])->fetchCollection();

foreach ($sections as $section) {
    $sectionId = $section->get('ID'); // Значение
    $arSection = $section->collectValues(); // Обьект в массив
    //...
}