_register_widget_form_callback() │ WP 2.8.0

Registers the form callback for a widget.

No Hooks.

Returns

null. Nothing (null).

Usage

_register_widget_form_callback( $id, $name, $form_callback, $options, ...$params );

$id(int|string) (required)

Widget ID.

$name(string) (required)

Name attribute for the widget.

$form_callback(callable) (required)

Form callback.

$options(array)

Widget control options. See wp_register_widget_control().
Default: empty array

...$params(mixed) (required)

Optional additional parameters to pass to the callback function when it's called.

Notes

• Global. Array. $wp_registered_widget_controls The registered widget controls.

Changelog

_register_widget_form_callback() register widget form callback code ^{WP 6.9}

function _register_widget_form_callback( $id, $name, $form_callback, $options = array(), ...$params ) {
	global $wp_registered_widget_controls;

	$id = strtolower( $id );

	if ( empty( $form_callback ) ) {
		unset( $wp_registered_widget_controls[ $id ] );
		return;
	}

	if ( isset( $wp_registered_widget_controls[ $id ] ) && ! did_action( 'widgets_init' ) ) {
		return;
	}

	$defaults          = array(
		'width'  => 250,
		'height' => 200,
	);
	$options           = wp_parse_args( $options, $defaults );
	$options['width']  = (int) $options['width'];
	$options['height'] = (int) $options['height'];

	$widget = array(
		'name'     => $name,
		'id'       => $id,
		'callback' => $form_callback,
		'params'   => $params,
	);
	$widget = array_merge( $widget, $options );

	$wp_registered_widget_controls[ $id ] = $widget;
}