这篇帖子上有很多无用的评论，这似乎是一个很简单的问题。

更改如下$theme_directory_name = \'twentyfourteen\'; 到您的主题。。。这就是你所要做的。第一个函数可以设置主题。第二个选项禁用编辑主题的界面。

function selfish_hardcoded_theme() {
    $theme_directory_name = \'twentyfourteen\';
    add_filter( \'template\', create_function( \'$template\', \'return "\' . $theme_directory_name . \'";\' ) );
    add_filter( \'stylesheet\', create_function( \'$stylesheet\', \'return "\' . $theme_directory_name . \'";\' ) );
}
add_action( \'setup_theme\', \'selfish_hardcoded_theme\', -1 );


add_filter( \'map_meta_cap\', function( $required_caps, $cap ) {
    if ( \'edit_themes\' == $cap || \'switch_themes\' == $cap || \'install_themes\' == $cap || \'delete_themes\' == $cap || \'update_themes\' == $cap ) {
        $required_caps[] = \'do_not_allow\';
    }
    return $required_caps;
}, 10, 2 );

$theme = wp_get_theme(); 
if (\'twentyfourteen\' !== $theme->name || \'twentyfourteen\' !== $theme->parent_theme) { 
    switch_theme( \'twentyfourteen\' );
}

最后，从管理中删除主题菜单：

function remove_themes_submenus() {
  global $submenu;
  unset($submenu[\'themes.php\'][5]); // Removes \'Themes\'
  unset($submenu[\'themes.php\'][15]); // Removes Theme Installer tab
}
add_action(\'admin_menu\', \'remove_themes_submenus\');

您可以创建自定义管理角色并删除这些标准管理功能：

function remove_admin_capabilities() {

    $admin = get_role( \'administrator\' );

     $caps = array(
        \'install_themes\',
        \'update_themes\',
        \'delete_themes\',
        \'edit_themes\',
        \'switch_themes\',
        \'edit_theme_options\',
    );

    foreach ( $caps as $cap ) {

        $admin->remove_cap( $cap );
    }
}
add_action( \'init\', \'remove_admin_capabilities\' );