Filters a widget's settings before saving.
$instancearray$new_instancearray$old_instancearray$widgetWP_Widgetwp-includes/class-wp-widget.php:476WP_Widget::update_callback()wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php:513WP_REST_Widget_Types_Controller::encode_form_data()<?php * * @param array $instance The current widget instance's settings. * @param array $new_instance Array of new widget settings. * @param array $old_instance Array of old widget settings. * @param WP_Widget $widget The current widget instance. */ $instance = apply_filters( 'widget_update_callback', $instance, $new_instance, $old_instance, $this ); if ( false !== $instance ) { $all_instances[ $number ] = $instance; } break; // Run only once.Introduced in 2.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.