How do I get categories for a product in Magento

Question

I\'m trying to add product_type to my Magento Google Base output based on the product\'s categories, but I seem to be unable to. I have the following code:

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Answer 1

This code work in phtml file in Magento 2

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$product = $objectManager->get('Magento\Framework\Registry')->registry('current_product');//get current product
$categories = $product->getCategoryIds(); /*will return category ids array*/