coffee4life

Here’s a patch.

Index: pinterest-rss-widget.php
===================================================================
--- pinterest-rss-widget.php
+++ pinterest-rss-widget.php
@@ -153,9 +153,9 @@
 add_shortcode('prw', 'prw_shortcode');

 class Pinterest_RSS_Widget extends WP_Widget {
-  function Pinterest_RSS_Widget() {
+  function __construct() {
     $widget_ops = array('classname' => 'pinterest_rss_widget', 'description' => 'A widget to display latest Pinterest Pins via RSS feed' );
-    $this->WP_Widget('pinterest_rss_widget', 'Pinterest RSS Widget', $widget_ops);
+    parent::__construct('pinterest_rss_widget', 'Pinterest RSS Widget', $widget_ops);
   }

   function widget($args, $instance) {