product_category MPL
$product_category_query = array( array( 'taxonomy' => 'product_category', 'terms' => '3', 'field' => 'term_taxonomy_id', 'include_children' => false, ), );
$product_category_query = array( array( 'taxonomy' => 'product_category', 'terms' => '3', 'field' => 'term_taxonomy_id', 'include_children' => false, ), );