为了解决这个问题，我浏览了四到五个Codex页面、几十个Stackexchange页面和四到五个开发人员博客。

我有一个自定义的帖子类型，叫做authors。CPT设置正确，我从Codex中提取了CPT框架，并对照CPT生成器进行了检查。管理屏幕正确创建、编辑和列出作者帖子，URL格式正确example.com/author/post_name/. 作者档案也起作用。

但我所做的一切都不会在前端显示该页面。只不过是404。

我已经在Permalinks页面和WP-CLI中刷新了十几次重写。我还安装了定制的Post类型Permalinks，并且有相同的问题。

CPT在这里：

add_action( \'init\', \'to4_cpt_author\' );

function to4_cpt_author() {
  $labels = array(
    \'name\'               => _x( \'Authors\', \'post type general name\' ),
    \'singular_name\'      => _x( \'Author\', \'post type singular name\' ),
    \'menu_name\'          => _x( \'Authors\', \'admin menu\' ),
    \'name_admin_bar\'     => _x( \'Author\', \'add new on admin bar\' ),
    \'add_new\'            => _x( \'Add New\', \'author\' ),
    \'add_new_item\'       => __( \'Add New Author\' ),
    \'new_item\'           => __( \'New Author\' ),
    \'edit_item\'          => __( \'Edit Author\' ),
    \'view_item\'          => __( \'View Author\' ),
    \'all_items\'          => __( \'All Authors\' ),
    \'search_items\'       => __( \'Search Authors\' ),
    \'parent_item_colon\'  => __( \'Parent Authors:\' ),
    \'not_found\'          => __( \'No authors found.\' ),
    \'not_found_in_trash\' => __( \'No authors found in Trash.\' )
  );

  $args = array(
    \'labels\'             => $labels,
    \'description\'        => __( \'Author post type.\' ),
    \'public\'             => true,
    \'publicly_queryable\' => true,
    \'show_ui\'            => true,
    \'show_in_menu\'       => true,
    \'query_var\'          => \'author\',
    \'rewrite\'            => array(\'slug\' => \'author\', \'with_front\' => true ),
    \'capability_type\'    => \'post\',
    \'has_archive\'        => true,
    \'hierarchical\'       => false,
    \'menu_position\'      => 9,
    \'supports\'           => array( \'title\', \'editor\', \'author\', \'thumbnail\', \'excerpt\', \'comments\' ),
    \'taxonomies\'         => array( \'admin_tag\', \'post_tag\' ),
    \'menu_icon\'          => \'dashicons-id-alt\'

  );

  register_post_type( \'author\', $args );
}

我已经安装了查询监视器插件，它告诉我以下重写是匹配的。

All Matching Rewrite Rules
Rule                            Query
([^/]*)/([^/]*)/?$              post_type=post
                                &name=$matches[2]
                                &meta=$matches[1]

^author/([^/]*)/?               post_type=author
                                &name=$matches[1]

author/([^/]+)(?:/([0-9]+))?/?$ author=$matches[1]
                                &page=$matches[2]

(.?.+?)(?:/([0-9]+))?/?$        pagename=$matches[1]
                                &page=$matches[2]

第二个查询^author/([^/]*)/? 是我用以下方法编写的：

function to4_rewrite_rule() {
    add_rewrite_rule( \'^author/([^/]*)/?\', \'index.php?post_type=author&name=$matches[1]\',\'top\' );
}
add_action(\'init\', \'to4_rewrite_rule\', 10, 0);

但最上面的查询似乎首先得到匹配，这就是为什么我得到404。查询监视器将生成的查询显示为name=catherine-collins&post_type=post 应该是什么时候name=catherine-collins &post_type=author

该查询来自何处，如何降级？没有别的了add_rewrite_rule 在我的主题或任何插件的任何地方，所以我猜这是核心。主题是217，我自己的自定义插件定义了几种自定义帖子类型。

add_filter("rewrite_rules_array", function($rules) {
    $keys = array_keys($rules);
    foreach($keys as $rule) {
        if($rule == \'([^/]*)/([^/]*)/?$\') {
            $value = $rules[$rule];
            unset($rules[$rule]);
            $rules[$rule] = $value;
            break;
        }
    }
    return $rules;
});

add_filter( \'rewrite_rules_array\', \'my_rewrite_rules_array\');
function my_rewrite_rules_array($rules) {
    $rules = array(\'([^/]*)/([^/]*)/?$\' => \'index.php?post_type=post&name=$matches[2]&meta=$matches[1]\') + $rules;
    return $rules;
}