Custom attribute not present in getProduct()

Question

I try to retrieve one custom attributes for a product and print in title.phtml. I have followed all the steps for create a custom attribute and add it to a group correctly and it appears in admin panel and I can insert my custom value. The problem comes when I try to retrieve the new custom attribute using

$_product = $this->getProduct();
$sample = $_product->getCustomAttribute('sample');

If I print the var_dump of $_product the custom attribute is missing. Thanks

Answer 1

Make sure when you add your custom product attribute, you have to add the visible_on_front property with value true, eg:

$eavSetup->addAttribute(
    Product::ENTITY,
    'sample',
    [
        ....
        'visible_on_front' => true
    ]
);

Assume you custom product atribute code is sample, to get your custom product attribute value, use $product->getData('sample') or $product->getSample().

If that code does not work in your phtml file, try to use code below:

echo $this->helper(Magento\Catalog\Helper\Output::class)->productAttribute(
    $block->getProduct(),
    $block->getProduct()->getSample(),
    'sample'
)

or

echo $attributeValue = $product->getResource()->getAttribute('sample')->getFrontend()->getValue($product);