如何屏蔽 WordPress 后台无关选项

根据需要，将下面代码添加到当前主题functions.php模板文件中：

屏蔽左侧菜单

function remove_menus() {
    global $menu;
    $restricted = array(
        __('Dashboard'),
        __('Posts'),
        __('Media'),
        __('Links'),
        __('Pages'),
        __('Appearance'),
        __('Tools'),
        __('Users'),
        __('Settings'),
        __('Comments'),
        __('Plugins')
    );
    end ($menu);
    while (prev($menu)){
        $value = explode(' ',$menu[key($menu)][0]);
        if(strpos($value[0], '<') === FALSE) {
            if(in_array($value[0] != NULL ? $value[0]:"" , $restricted)){
                unset($menu[key($menu)]);
            }
        }else {
        $value2 = explode('<', $value[0]);
            if(in_array($value2[0] != NULL ? $value2[0]:"" , $restricted)){
                unset($menu[key($menu)]);
            }
        }
    }
}
if (is_admin()){
    // 屏蔽左侧菜单
    add_action('admin_menu', 'remove_menus');
}

删除子菜单

function remove_submenu() {
    // 删除”设置”下面的子菜单”隐私”
    remove_submenu_page('options-general.php', 'options-privacy.php');
    // 删除”外观”下面的子菜单”编辑”
    remove_submenu_page('themes.php', 'theme-editor.php');
}
if (is_admin()){
    //删除子菜单
    add_action('admin_init','remove_submenu');
}

屏蔽后台更新模块

function wp_hide_nag() {
    remove_action( 'admin_notices', 'update_nag', 3 );
}
add_action('admin_menu','wp_hide_nag');

屏蔽 WP 后台“显示选项”和“帮助”选项卡

function remove_screen_options(){ return false;}
    add_filter('screen_options_show_screen', 'remove_screen_options');
    add_filter( 'contextual_help', 'wpse50723_remove_help', 999, 3 );
    function wpse50723_remove_help($old_help, $screen_id, $screen){
    $screen->remove_help_tabs();
    return $old_help;
}

屏蔽后台仪表盘无用模块

function example_remove_dashboard_widgets() {
    // Globalize the metaboxes array, this holds all the widgets for wp-admin
    global $wp_meta_boxes;
    // 以下这一行代码将删除 "快速发布" 模块
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
    // 以下这一行代码将删除 "引入链接" 模块
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
    // 以下这一行代码将删除 "插件" 模块
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
    // 以下这一行代码将删除 "近期评论" 模块
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
    // 以下这一行代码将删除 "近期草稿" 模块
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_recent_drafts']);
    // 以下这一行代码将删除 "WordPress 开发日志" 模块
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
    // 以下这一行代码将删除 "其它 WordPress 新闻" 模块
    unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);
    // 以下这一行代码将删除 "概况" 模块
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
}
add_action('wp_dashboard_setup', 'example_remove_dashboard_widgets' );

屏蔽后台页脚版本信息

function change_footer_admin () {return '';}
add_filter('admin_footer_text', 'change_footer_admin', 9999);
function change_footer_version() {return '';}
add_filter( 'update_footer', 'change_footer_version', 9999);

屏蔽后台左上LOGO

function annointed_admin_bar_remove() {
        global $wp_admin_bar;
        /* Remove their stuff */
        $wp_admin_bar->remove_menu('wp-logo');
}
add_action('wp_before_admin_bar_render', 'annointed_admin_bar_remove', 0);

来源：知更鸟