Ticket #32480: 32480.diff

wp-includes/default-widgets.php

@@ -455 +455 @@
 
         public function __construct() {
                 $widget_ops = array('classname' => 'widget_calendar', 'description' => __( 'A calendar of your site’s Posts.') );
-                parent::__construct('calendar', __('Calendar'), $widget_ops);
+                parent::WP_Widget('calendar', __('Calendar'), $widget_ops);
         }
 
         public function widget( $args, $instance ) {

wp-includes/widgets.php

@@ -173 +173 @@
          * @param array  $control_options
          */
         public function WP_Widget( $id_base, $name, $widget_options = array(), $control_options = array() ) {
+                _doing_it_wrong( 'WP_Widget', esc_html__( 'This is a PHP4 style constructor, please use __construct instead' ), '4.3' );
                 WP_Widget::__construct( $id_base, $name, $widget_options, $control_options );
         }