--- views_handler_filter_node_nid_php.inc.OLD	2010-07-09 11:12:26.307000415 +1000
+++ views_handler_filter_node_nid_php.inc	2010-07-09 11:13:07.911499832 +1000
@@ -51,7 +51,7 @@ class views_handler_filter_node_nid_php 
       }
     } else $result = $rawcode;
 	
-    if ($result == NULL) {
+    if ($result === NULL) {
       watchdog('viewsphpfilter', "PHP returned null; filter ignored", array(), WATCHDOG_NOTICE);
       return;
     }