Can't get custom attribute value magento 2

Question

I have created custom attribute to product called thickness and i set visible in catalog product to yes but still getting null of this attribute

I am going to store / product and created a new attribute then i set the value of my attribute as below

$_product->setCustomAttribute('epaisseur', $namep);

and then i called the attribute in my phtml :

$epaisseur = $_product->getData('epaisseur'); 

any help please

Answer 1

Please try with below code :

$_product->setData('epaisseur', $namep);

OR

$_product->setEpaisseur($namep);

I hope its helpful to you.

Answer 2

Try this,

$value="test";
$product->setEpaisseur(trim($value));
$product->getResource()->saveAttribute($product, 'epaisseur');