Magento 2 category current category load category parent category
<?php
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$category = $objectManager->get('Magento\Framework\Registry')->registry('current_category');
if( $category )
{
$category = $objectManager->create('Magento\Catalog\Model\Category')->load( $category->getId() );
echo $category->getId();
echo $category->getName();
echo $category->getUrl();
echo $category->getIsActive();
echo $category->getImageUrl();
}
?>
$category = $objectManager->create('Magento\Catalog\Model\Category')->load( $category->getId() );
echo $category->getParentCategory()->getId();
$parent_id = $category->getParentId();