Ticket #6309: 6309.diff

wp-admin/includes/plugin.php

@@ -116 +116 @@
                 $plugins = array($plugins);
 
         foreach ( $plugins as $plugin ) {
-                array_splice($current, array_search( $plugin, $current), 1 ); // Array-fu!
+                $item = array_search( $plugin, $current);
+                if( false === $item)
+                        continue;
+                array_splice($current, $item, 1 ); // Array-fu!
                 do_action('deactivate_' . trim( $plugin ));
         }