菜单不存储在选项中。它们通过各种其他表进行了非常复杂的链接。

$wpdb->get_results(sprintf("
        select tr.object_id from wp_terms t 
        left join wp_term_taxonomy tt on t.term_id = tt.term_id
        left join wp_term_relationships tr on tt.term_taxonomy_id = tr.term_taxonomy_id
        left join wp_posts p on p.ID=tr.object_id
        left join wp_postmeta m on m.post_id=tr.object_id
        where t.slug =\'%s\' and tt.taxonomy=\'nav_menu\' group by(ID)
        order by p.menu_order asc LIMIT 200;
        ",$menu));

查询概述了您必须考虑的关系。