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I want to hide some submenus from the Menu by using "Include in Menu = false" from the admin panel, but still, it's showing in Menu. please update if there is any solution to this.

How to create a hidden category?

You need to follow these steps.

1. Choose the Categories section into Product section on Admin sidebar to start configuration.

2. Select the category you want to hide in the category tree.

3. Then you must edit some field in General Information and Display Setting like this:

    General Information: Set Is Active and Include in Navigation Menu to No

    Display setting: Set Is Anchor to No



Just with these simple steps, you can hide a category. 

When you complete the configuration, tap Save Category.

Try to use this script :

 <?php

        $objectManager = MagentoFrameworkAppObjectManager::getInstance();

        $categoryCollection = $objectManager->get('MagentoCatalogModelResourceModelCategoryCollectionFactory');

        $categories = $categoryCollection->create();

        $categories->addAttributeToSelect('*');

        $categories->addAttributeToFilter('level', array('eq'=>2));

        $categories->load();

    ?>

      <?php

        foreach($categories as $category):

            $catId = $category->getId();

            $subcategory = $objectManager->create('MagentoCatalogModelCategory')->load($catId);

            $subcats = $subcategory->getChildrenCategories();

            $_helper = $this->helper('MagentoCatalogHelperOutput');

            foreach ($subcats as $subcat) {

                $_category = $objectManager->create('MagentoCatalogModelCategory')->load($subcat->getId());

                $_outputhelper = $this->helper('MagentoCatalogHelperOutput');

                $storeManager = $objectManager->get('MagentoStoreModelStoreManagerInterface');

                $sitebaseurl = $storeManager->getStore()->getBaseUrl();

                $subcaturl = $subcat->getUrl();

                if (!$_category->getData('include_in_menu')) {



                    continue;



                }

                ?>

                <a href="<?php echo $subcat->getUrl(); ?>" id="sub_<?php echo $subcat->getId();?>" class="<?php if($subcat->getChildrenCategories()->count()):?>child_sub<?php else:?> no-child<?php endif;?>">    

                <?php echo $subcat->getName(); ?>

                </a>

            <?php } ?>

        <?php endforeach; ?>