fix unititialize value

diff --git a/Pman/Roo.php b/Pman/Roo.php
index a86d98a..d22fdae 100644 (file)
--- a/Pman/Roo.php
+++ b/Pman/Roo.php
@@ -357,6 +357,7 @@ class Pman_Roo extends Pman
         if (!empty($_REQUEST['_requestMeta']) &&  count($ret)) {
             $meta = $this->meta($x, $ret);
             if ($meta) {
+                $extra = $extra ? $extra: array();
                 $extra['metaData'] = $meta;
             }
         }