add_settings_section() WordPress Function

The add_settings_section() function is used to add a new settings section to a settings page. The function takes three arguments: the ID of the settings section, the name of the settings section, and a callback function that will be used to display the settings section. The add_settings_section() function is used to add a new settings section to a settings page. The function takes three arguments: the ID of the settings section, the name of the settings section, and a callback function that will be used to display the settings section. The ID of the settings section is used to identify the section in the database. The name of the settings section is used to display the section title on the settings page. The callback function is used to display the settings form on the settings page.

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

add_settings_section(
	'eg_setting_section',
	'Example settings section in reading',
	'eg_setting_section_callback_function',
	'reading'
);
function eg_setting_section_callback_function( $arg ) {
	// echo section intro text here
	echo '<p>id: ' . $arg['id'] . '</p>';             // id: eg_setting_section
	echo '<p>title: ' . $arg['title'] . '</p>';       // title: Example settings section in reading
	echo '<p>callback: ' . $arg['callback'] . '</p>'; // callback: eg_setting_section_callback_function
}

function add_settings_section( $id, $title, $callback, $page ) {
	global $wp_settings_sections;

	if ( 'misc' === $page ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.0.0',
			sprintf(
				/* translators: %s: misc */
				__( 'The "%s" options group has been removed. Use another settings group.' ),
				'misc'
			)
		);
		$page = 'general';
	}

	if ( 'privacy' === $page ) {
		_deprecated_argument(
			__FUNCTION__,
			'3.5.0',
			sprintf(
				/* translators: %s: privacy */
				__( '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,
	);
}