Ticket #32480: 32480.2.diff

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 );
         }