section.php

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<?php
$items = elgg_extract('items', $vars, []);
if (empty($items) || !is_array($items)) {
    return;
}

unset($vars['items']);

$headers = elgg_extract('show_section_headers', $vars, false);
unset($vars['show_section_headers']);

$item_class = elgg_extract_class($vars, [], 'item_class');
unset($vars['item_class']);

$name = elgg_extract('name', $vars);
unset($vars['name']);

$section = elgg_extract('section', $vars);
unset($vars['section']);
$vars['data-menu-section'] = $section;

if ($headers) {
    echo elgg_format_element(elgg_extract('section_header_tag_name', $vars, 'div'), [
        'class' => 'elgg-menu-section-header',
    ], elgg_echo("menu:$name:header:$section"));
}

$lis = [];
foreach ($items as $menu_item) {
    $item = elgg_view('navigation/menu/elements/item', [
        'item' => $menu_item,
        'item_class' => $item_class,
    ]);
    
    if (empty($item)) {
        continue;
    }
    
    $lis[] = $item;
}

if (empty($lis)) {
    return;
}

echo elgg_format_element('ul', $vars, implode(PHP_EOL, $lis));