get_results("SELECT cat_ID, cat_name, category_nicename FROM $wpdb->categories WHERE category_count > 0 AND category_parent = 0 AND cat_ID < 13"); $salida = ""; foreach ($cats as $cat) { $p =$wpdb->get_row("SELECT * FROM $wpdb->posts AS p, $wpdb->post2cat AS p2c WHERE p2c.post_id = p.ID AND p2c.category_id = ".$cat->cat_ID." ORDER BY xxxxxx DESC LIMIT 0 , 1"); $salida .= ''.wp_specialchars($cat->cat_name).''; } echo $salida; ?>