Woocommerce: Show products filtered by attribute

Question

I want to filter products by attribute in Woocommerce using a checkbox or alternatively a link. If I mark the checkbox or click the link I want get all products that have this a

Answer 1

Ok i got finally the result!

I have this:

$args = array ( 
     'post_type'  => 'product',
     'posts_per_page'  => 12,
     'meta_query' => array( 
         array( 
          'value' => 'demo', 
          'compare' => 'like'
         ), 
       ), 

);

Thanks anyway for the help!