How to get category discription? - magento2

Question

This is phtml code for getting selected category. I want to get category description. How can I get that?
<?php
$catId =2;
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$subcategory = $objectManager->create('Magento\Catalog\Model\Category')->load($catId);
$subcats = $subcategory->getChildrenCategories();
?>
<ul>
<li> <span> All Categories </span> </li>
<?php
foreach ($subcats as $subcat) {
if ($subcat->getIsActive()) {
$subcat_url = $subcat->getUrl();
$subcat_img = "";
$placeholder_img = "/media/placeholder.png";
?>
<li>
<a href="<?php echo $subcat_url; ?>">
<?php echo $subcat->getName(); ?>
</a>
</li>
<?php
}
}
?>
</ul>

Answer 1

To get the Category Description, you have to load Category and after that, you can use getDescription() function.
I have made some changes in your code. Please find the new code here:
<?php
$catId =2;
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$subcategory = $objectManager->create('Magento\Catalog\Model\Category')->load($catId);
$subcats = $subcategory->getChildrenCategories();
?>
<ul>
<li> <span> All Categories </span> </li>
<?php
foreach ($subcats as $subcat) {
if ($subcat->getIsActive()) {
$subcat = $objectManager->create('Magento\Catalog\Model\Category')->load($subcat->getId());
$subcat_url = $subcat->getUrl();
$subcat_img = "";
$placeholder_img = "/media/placeholder.png";
?>
<li>
<a href="<?php echo $subcat_url; ?>">
<?php echo $subcat->getName(); ?>
</a>
<p><?php echo $subcat->getDescription(); ?></p>
</li>
<?php
}
}
?>
</ul>
Note: In Magento 2, the direct use of ObjectManager in template files is not a good practice. Dependency injection is the recommended approach.
For more details on how to use ObjectManager and what the consequences are of using the ObjectManager directly, you can follow the link below:
https://magento.stackexchange.com/questions/117098/magento-2-to-use-or-not-to-use-the-objectmanager-directly