add_settings_section()

add_settings_section()函数是Wordpress函数，将新分区添加到设置页。

add_settings_section( string $id, string $title, callable $callback, string $page )

将新分区添加到设置页。
Add a new section to a settings page.

说明（Description）

设置API的一部分。使用此选项可为管理页定义新的设置节。使用do_settings_sections（）在管理页回调函数中显示设置节。使用Add_settings_field（）将设置字段添加到分区中。

$callback参数应该是一个函数的名称，该函数在实际字段之前回显要显示在设置部分顶部的任何内容。如果你想的话，它什么也不能输出。

参数（Parameters）

返回（Return）

无返回值

源码（Source）

/**
 * Add a new section to a settings page.
 *
 * Part of the Settings API. Use this to define new settings sections for an admin page.
 * Show settings sections in your admin page callback function with do_settings_sections().
 * Add settings fields to your section with add_settings_field()
 *
 * The $callback argument should be the name of a function that echoes out any
 * content you want to show at the top of the settings section before the actual
 * fields. It can output nothing if you want.
 *
 * @since 2.7.0
 *
 * @global $wp_settings_sections Storage array of all settings sections added to admin pages
 *
 * @param string $id       Slug-name to identify the section. Used in the 'id' attribute of tags.
 * @param string $title    Formatted title of the section. Shown as the heading for the section.
 * @param string $callback Function that echos out any content at the top of the section (between heading and fields).
 * @param string $page     The slug-name of the settings page on which to show the section. Built-in pages include 'general', 'reading', 'writing', 'discussion', 'media', etc. Create your own using add_options_page();
 */
function add_settings_section($id, $title, $callback, $page) {
	global $wp_settings_sections;
	if ( 'misc' == $page ) {
		_deprecated_argument( __FUNCTION__, '3.0', sprintf( __( 'The "%s" options group has been removed. Use another settings group.' ), 'misc' ) );
		$page = 'general';
	}
	if ( 'privacy' == $page ) {
		_deprecated_argument( __FUNCTION__, '3.5', sprintf( __( 'The "%s" options group has been removed. Use another settings group.' ), 'privacy' ) );
		$page = 'reading';
	}
	$wp_settings_sections[$page][$id] = array('id' => $id, 'title' => $title, 'callback' => $callback);
}

笔记（Notes）

示例用法
php类的add_settings_部分示例