Adds a new field to a section of a settings page.

Description

Part of the Settings API. Use this to define a settings field that will show as part of a settings section inside a settings page. The fields are shown using do_settings_fields() in do_settings_sections() .

The $callback argument should be the name of a function that echoes out the HTML input tags for this setting field. Use get_option() to retrieve existing values to show.

Parameters

$idstringrequired

Slug-name to identify the field. Used in the 'id' attribute of tags.

$titlestringrequired

Formatted title of the field. Shown as the label for the field during output.

$callbackcallablerequired

Function that fills the field with the desired form inputs. The function should echo its output.

$pagestringrequired

The slug-name of the settings page on which to show the section (general, reading, writing, …).

$sectionstringoptional

The slug-name of the section of the settings page in which to show the box. Default 'default'.

Default:'default'

$argsarrayoptional

Extra arguments that get passed to the callback function.

• label_for string
  When supplied, the setting title will be wrapped in a <label> element, its for attribute populated with this value.
• class string
  CSS Class to be added to the <tr> element when the field is output.

Default:array()

More Information

You MUST register any options used by this function with register_setting() or they won’t be saved and updated automatically.

The callback function needs to output the appropriate html input and fill it with the old value, the saving will be done behind the scenes.

The html input field’s name attribute must match $option_name in register_setting(), and value can be filled using get_option().

This function can also be used to add extra settings fields to the default WP settings pages like media or general. You can add them to an existing section, or use add_settings_section() to create a new section to add the fields to.

See Settings API for details.

Source

function add_settings_field( $id, $title, $callback, $page, $section = 'default', $args = array() ) {
	global $wp_settings_fields;

	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_fields[ $page ][ $section ][ $id ] = array(
		'id'       => $id,
		'title'    => $title,
		'callback' => $callback,
		'args'     => $args,
	);
}

View all references View on Trac View on GitHub

Changelog