WordPress自定义路由

add_action('init', 'my_rr_url');
function my_rr_url() {
    //Ensure the $wp_rewrite global is loaded
    global $wp_rewrite;
    add_rewrite_tag('%myname%', '([^&]+)');
    add_rewrite_rule('haha/([A-Za-z0-9]{1,})/?$', 'index.php?page_id=8&myname=$matches[1]', 'top');
    //Call flush_rules() as a method of the $wp_rewrite object
    $wp_rewrite->flush_rules();
}