wp-includes/widgets/class-wp-widget-calendar.php:50$argsarray$instancearrayOne hook fires while WP_Widget_Calendar::widget() runs, in this order:
public function widget( $args, $instance ) { $title = ! empty( $instance['title'] ) ? $instance['title'] : ''; /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ $title = apply_filters( 'widget_title', $title, $instance, $this->id_base ); echo $args['before_widget']; if ( $title ) { echo $args['before_title'] . $title . $args['after_title']; } if ( 0 === self::$instance ) { echo '<div id="calendar_wrap" class="calendar_wrap">'; } else { echo '<div class="calendar_wrap">'; } get_calendar(); echo '</div>'; echo $args['after_widget']; ++self::$instance; }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/widgets/class-wp-widget-calendar.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.