释放双眼，带上耳机，听听看~！
为WordPress后台 Settings 顶级栏目创建一个子栏目
语法结构
<?php add_options_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?>
参数
$page_title
$menu_title：菜单名称
$capability：权限
$menu_slug
$function 回调函数
<?php
/** 第1步：定义添加菜单选项的函数 */
function my_plugin_menu() {
add_options_page(
'My Plugin Options',
'My Plugin',
'manage_options',
'my-unique-identifier',
'my_plugin_options' );
}
/** 第2步：将函数注册到钩子中 */
add_action( 'admin_menu', 'my_plugin_menu' );
/** 第3步：定义选项被点击时打开的页面 */
//current_user_can()检测当前的用户是否有特定的权限
//wp_die()终断WordPress执行并显示错误HTML信息。
function my_plugin_options() {
if ( !current_user_can( 'manage_options' ) ) {
wp_die( 'You do not have sufficient permissions to access this page.' );
}
echo '<div class=wrap>Here is where the form would go if I actually had options.</div>';
}
?>
为其他顶级栏目创建子菜单的函数
Dashboard <?php add_dashboard_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Posts <?php add_posts_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Media <?php add_media_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Links <?php add_links_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Pages <?php add_pages_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Comments <?php add_comments_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Appearance <?php add_theme_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Plugins <?php add_plugins_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Users <?php add_users_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?> Tools <?php add_management_page( $page_title, $menu_title, $capability, $menu_slug, $function); ?>
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