Get the attribute value in product page programatically
in Magento_Catalog / template /product/ make a phtml file .
write the below code
$_product = $block->getProduct();
$pi = $_product->getData('giftwrap'); // giftwrap is attribute name
if($pi==1){ echo "show image";}
Magento_Catalog/layout /catalog_product_view.xml
<block name="catalog.mygifrwrap" template="Magento_Catalog::product/giftwrap.phtml" class="Magento\Catalog\Block\Product\View"/>