Why does foreach (opencart) only return the last result?

Question

opencart

I welcome everyone. Please tell me what I'm doing wrong. I'm trying to display the following menu:
-Category 1
---manufacturer 2
---manufacturer 6
-Category 2
---manufacturer 3
---manufacturer 5
---manufacturer 2
-Category 3
---manufacturer 1
i.e. the manufacturers contained in it should appear under the category.
And almost everything turns out, except for one thing - in all categories, manufacturers belonging to the last category are displayed.
In the controller it looks like this:

$categories = $this->model_catalog_category->getCategories(0);

    foreach ($categories as $category) {
      if ($category['top']) {
        

                // Level 2
        $children_data = array(); //1

        $children = $this->model_catalog_category->getCategories($category['category_id']); //2

        foreach ($children as $child) { //3
          $filter_data = array(
            'filter_category_id'  => $child['category_id'],
            'filter_sub_category' => true
          );

          $children_data[] = array(
            'name'  => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
            'href'  => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id'])
          );
        }
                
        // Level 1
        $data['categories'][] = array(
          'name'     => $category['name'],
          'children' => $children_data,
          'column'   => $category['column'] ? $category['column'] : 1,
          'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
        );
                
                
                //manufacturers menu
                
                $manufacturers = $this->model_catalog_category->getManufacturers($category['category_id']); //2
                
                $data['manufacturers'] = array(); //1
                foreach ($manufacturers as $manufacturer)  { //3
                       $data['manufacturers'][] = array (
                       'manufacturer_id' => $manufacturer['manufacturer_id'],
                       'thumb' => $manufacturer['image'],
                       'name' => $manufacturer['name'],
                       'href' => $this->url->link('product/category', 'path=' . $category['category_id'] . '&manufacturer_id=' . $manufacturer['manufacturer_id'])
                        );
                }
                 
                
      }
    }

In view like this:

<?php foreach ($categories as $category) { ?>
            <b><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a></b> <br> 
            <?php foreach ($manufacturers as $manufacturer) { ?>
                     ----    <a href="<?php echo $manufacturer['href'] ?>"><?php echo $manufacturer['name'] ?> (<?php echo $manufacturer['thumb'] ?>)</a> <br>
            <?php } ?>
        <?php } ?>

If I do the same for level 2, everything works fine. With manufacturers - nothing =(
Thank you in advance for your help.