菜单中未显示自定义开机自检类型

我已经创建了一个简单的插件来管理我的公文包作为一个自定义的帖子类型。一切正常，工作正常，但无法将我的自定义帖子类型添加到菜单中（也无法用于其分类）。注意：我已经检查了我以前知道的很多方法。（show\\u ui，show\\u in\\u nav\\u菜单，…）以下是我的CPT代码

<?php
function oseo_custom_post_type() {
    register_taxonomy( \'portfolio_cat\', array(\'oseo_portfolio\'),
        array(
            \'show_ui\'           => true,
            \'hierarchical\'      => true,
            \'label\'             => __(\'Portfolio Filters\', \'oseo-portfolio\'),
            \'singular_label\'    => __(\'portfolio Filter\', \'oseo-portfolio\'),
            \'rewrite\'           => array(\'slug\' =>  \'portfolio_type\')
        )
    );
    $labels = array(
        \'name\'                => _x( \'Portfolios\', \'Post Type General Name\', \'oseo-portfolio\' ),
        \'singular_name\'       => _x( \'Portfolio\', \'Post Type Singular Name\', \'oseo-portfolio\' ),
        \'menu_name\'           => __( \'Portfolios\', \'oseo-portfolio\' ),
        \'parent_item_colon\'   => __( \'Parent Portfolio\', \'oseo-portfolio\' ),
        \'all_items\'           => __( \'All Portfolios\', \'oseo-portfolio\' ),
        \'view_item\'           => __( \'View Portfolio\', \'oseo-portfolio\' ),
        \'add_new_item\'        => __( \'Add New Portfolio\', \'oseo-portfolio\' ),
        \'add_new\'             => __( \'Add New\', \'oseo-portfolio\' ),
        \'edit_item\'           => __( \'Edit Portfolio\', \'oseo-portfolio\' ),
        \'update_item\'         => __( \'Update Portfolio\', \'oseo-portfolio\' ),
        \'search_items\'        => __( \'Search Portfolio\', \'oseo-portfolio\' ),
        \'not_found\'           => __( \'Not Found\', \'oseo-portfolio\' ),
        \'not_found_in_trash\'  => __( \'Not found in Trash\', \'oseo-portfolio\' ),
    );
    $args = array(
        \'label\'               => __( \'Portfolios\', \'oseo-portfolio\' ),
        \'description\'         => __( \'Portfolios\', \'oseo-portfolio\' ),
        \'labels\'              => $labels,
        \'supports\'            => array( \'title\', \'editor\', \'excerpt\', \'thumbnail\', \'comments\', \'custom-fields\', ),
        \'taxonomies\'          => array( \'portfolio_cat\' ),
        \'hierarchical\'        => true,
        \'public\'              => true,
        \'show_ui\'             => true,
        \'show_in_menu\'        => true,
        \'show_in_nav_menus\'   => true,
        \'show_in_admin_bar\'   => true,
        \'menu_position\'       => 5,
        \'can_export\'          => true,
        \'has_archive\'         => true,
        \'exclude_from_search\' => false,
        \'publicly_queryable\'  => true,
        \'rewrite\'   =>  array(\'slug\'    =>  \'portfolio\'),
        \'capability_type\'     => \'page\',
    );
    flush_rewrite_rules();

    register_post_type( \'oseo_portfolio\', $args );

}
add_action( \'init\', \'oseo_custom_post_type\');
?>

我认为可能导致此问题的另一件事是，我将元盒用于此CPT。如果需要的话，我可以发布这些。

// portfolio code function codenovo_portfolio_init(){ $labels = array( \'name\' => _x(\'Portfolio\', \'post type general name\'), \'singular_name\' => _x(\'Portfolio\', \'post type singular name\'), \'add_new\' => _x(\'Add New\', \'portfolio\'), \'add_new_item\' => __(\'Add New Portfolio\'), \'edit_item\' => __(\'Edit Portfolio\'), \'new_item\' => __(\'New Portfolio\'), \'view_item\' => __(\'View Portfolio\'), \'search_items\' => __(\'Search Portfolio\'), \'not_found\' => __(\'No portfolio found\'), \'not_found_in_trash\' => __(\'No portfolio found in Trash\'), \'parent_item_colon\' => \'\', \'menu_name\' => \'Portfolio\' ); $args = array( \'labels\' => $labels, \'public\' => true, \'publicly_queryable\' => true, \'show_ui\' => true, \'show_in_menu\' => true, \'query_var\' => true, \'rewrite\' => true, \'capability_type\' => \'post\', \'has_archive\' => false, \'hierarchical\' => false, \'menu_position\' => null, \'supports\' => array(\'title\',\'editor\',\'thumbnail\'), \'rewrite\' => array( \'slug\' => \'portfolio\', \'with_front\' => FALSE, ) ); register_post_type(\'portfolio\',$args); $labels = array( \'name\' => _x( \'Portfolio Category\', \'taxonomy general name\' ), \'singular_name\' => _x( \'Category\', \'taxonomy singular name\' ), \'search_items\' => __( \'Search Types\' ), \'all_items\' => __( \'All Category\' ), \'parent_item\' => __( \'Parent Category\' ), \'parent_item_colon\' => __( \'Parent Category:\' ), \'edit_item\' => __( \'Edit Category\' ), \'update_item\' => __( \'Update Category\' ), \'add_new_item\' => __( \'Add New Category\' ), \'new_item_name\' => __( \'New Category Name\' ), ); register_taxonomy(\'portfoliocategory\',array(\'portfolio\'), array( \'hierarchical\' => true, \'labels\' => $labels, \'show_ui\' => true, \'query_var\' => true, \'rewrite\' => array( \'slug\' => \'portifolio_category\' ), )); } add_action(\'init\', \'codenovo_portfolio_init\');

将选项添加到“Menus”编辑器的“Screen Options”部分

我正在开发一个向WordPress菜单编辑器添加自定义选项的系统，我想将其与屏幕选项面板集成。在我的研究中，我找不到任何关于修改现有屏幕选项菜单的内容；这可能吗？请参见下面的屏幕截图，以更好地了解我要实现的目标。外观>菜单上的默认“屏幕选项”：外观>菜单上的目标“屏幕选项”：

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