wp-includes/class-wp-widget.php:360Generates the actual widget content (Do NOT override).
$argsarray$widget_argsint|arrayoptional1$numberint
One hook fires while WP_Widget::display_callback() runs, in this order:
Filters the settings for a particular widget instance.
public function display_callback( $args, $widget_args = 1 ) { if ( is_numeric( $widget_args ) ) { $widget_args = array( 'number' => $widget_args ); } $widget_args = wp_parse_args( $widget_args, array( 'number' => -1 ) ); $this->_set( $widget_args['number'] ); $instances = $this->get_settings(); if ( isset( $instances[ $this->number ] ) ) { $instance = $instances[ $this->number ]; /** * Filters the settings for a particular widget instance. * * Returning false will effectively short-circuit display of the widget. * * @since 2.8.0 * * @param array $instance The current widget instance's settings. * @param WP_Widget $widget The current widget instance. * @param array $args An array of default widget arguments. */ $instance = apply_filters( 'widget_display_callback', $instance, $this, $args ); if ( false === $instance ) { return; } $was_cache_addition_suspended = wp_suspend_cache_addition(); if ( $this->is_preview() && ! $was_cache_addition_suspended ) { wp_suspend_cache_addition( true ); } $this->widget( $args, $instance ); if ( $this->is_preview() ) { wp_suspend_cache_addition( $was_cache_addition_suspended ); } } }Introduced in 2.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-widget.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.