Magento 2 get all values of dropdown attribute

Magento 2 get all values of dropdown attribute

This post shows how to get all possible values of dropdown attribute in Magento 2. You can use below code to get all options of dropdown attribute in phtml file.

$objectManager =  \Magento\Framework\App\ObjectManager::getInstance();
$productRepository = $objectManager->get('\Magento\Catalog\Model\Product\Attribute\Repository');

$sizes = $productRepository->get('sizes')->getOptions();
foreach ($sizes as $sizesOption) {
    if ($sizesOption->getValue() != '') {
        $sizesOption->getValue();
        $sizesOption->getLabel();
    }
}