Вызов древа инфоблока через замыкание

all_catalog.php

<?
require($_SERVER["DOCUMENT_ROOT"]."/bitrix/header.php");
$APPLICATION->SetTitle("Карта сайта");
?>

function getSectionsIblock(int $iblockID) 
{
        // Получаем инфоблок для создание ссылок по правилам ЧПУ
        $obIblock = \Bitrix\Iblock\IblockTable::getList(["filter" => ["ID" => $iblockID], 'limit' => 1]);
        if ($arIBlock = $obIblock->fetch()) {
            $arIBlock['SECTION_PAGE_URL'] = str_replace(["#SITE_DIR#", "#IBLOCK_CODE#"], ["", $arIBlock['CODE']], $arIBlock['SECTION_PAGE_URL']);
            $clIBlockSection = \Bitrix\Iblock\Model\Section::compileEntityByIblock($iblockID);
            // Собираем разделы
            $rsSection = $clIBlockSection::getList([
                'order' => [
                'LEFT_MARGIN' => 'ASC',
                'SORT' => 'ASC'
            ],
            'filter' => [
                'IBLOCK_ID' => $arIBlock['ID'],
                'ACTIVE' => 'Y',
                '<DEPTH_LEVEL' => 5
            ],
            'select' => [
                "ID",
                "NAME",
                "CODE",
                "DEPTH_LEVEL",
                "IBLOCK_SECTION_ID"
            ],
            'cache' => [
                'ttl' => 3600,
                'cache_joins' => true,
            ]
            ]);

            $arSections = [];
            while ($arSection = $rsSection->fetch()) {
                $arSection["SUBSECTIONS"] = [];
                $arSection['SECTION_CODE_PATH'] = $arSection['CODE'];
                $arSections[$arSection["ID"]] = $arSection;
            }
            foreach ($arSections as &$arSection) {
                if (!empty($arSection["IBLOCK_SECTION_ID"]) && !empty($arSections[$arSection["IBLOCK_SECTION_ID"]])) {
                    $arSection['SECTION_CODE_PATH'] = $arSections[$arSection["IBLOCK_SECTION_ID"]]['SECTION_CODE_PATH'] . '/' . $arSection['CODE'];
                    $arSections[$arSection["IBLOCK_SECTION_ID"]]["SUBSECTIONS"][] = &$arSections[$arSection["ID"]];
                }
                $arSection['SECTION_PAGE_URL'] = str_replace(['#SECTION_CODE_PATH#', '#SECTION_CODE#', '#SECTION_ID#',], [$arSection['SECTION_CODE_PATH'], $arSection['CODE'],$arSection['ID'] ], $arIBlock['SECTION_PAGE_URL']);

            }
        }
        return $arSections;
}
// Замыкание и рекурсия
$renderList = function ($arSitemap, $intLevel = 1) use (&$renderList) {?>
    <ul class="html_sitemap map-level-<?= $intLevel -1 ?>">
        <?
        foreach ($arSitemap as &$arSection) {
            if ($arSection['DEPTH_LEVEL'] != $intLevel){
                continue;
            }
            ?>
            <li class="html_sitemap__section l<?= $intLevel ?>" id="ms<?= $arSection["ID"]?>">
                <a class="name" href="<?= $arSection['SECTION_PAGE_URL'] ?>">
                    <? echo $arSection["NAME"]; ?>
                </a>
                <?if (!empty($arSection['SUBSECTIONS'])) {?>
                    <ul class="html_sitemap__subsections">
                        <? $renderList($arSection['SUBSECTIONS'], $intLevel + 1);?>
                    </ul>
                <?}?>
            </li>
            <?
        }
        ?>
    </ul>
    <?
};

echo $renderList(getSectionsIblock(16, $arReplace));
?>

<?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>