Get values of product custom attribute - WooCommerce

When we make custom product attribute in WooCommerce, they are registered as a custom taxonomy. So we can use WordPress function get_the_terms() to retrieve them.

When register these custom taxonomy, WooCommerce adds a prefix of pa_ to our custom product attribute.

So if we create an attribute called Fabrics, who’s slug is fabrics, then the custom taxonomy would be ‘pa_fabrics’. Now we are going to retrieve all terms in this attribute (fabrics) of a product.

$fabric_values = get_the_terms( $product->id, 'pa_fabrics');
 
foreach ( $fabric_values as $fabric_value ) {
	  echo $fabric_value->name;
}