[phpwiki-checkins] SF.net SVN: phpwiki:[10535] trunk/lib/WikiDB/backend/PDO.php

[<var...@us...>]

Revision: 10535
          http://sourceforge.net/p/phpwiki/code/10535
Author:   vargenau
Date:     2021-09-03 11:30:25 +0000 (Fri, 03 Sep 2021)
Log Message:
-----------
PDO: better check _unserialize

Modified Paths:
--------------
    trunk/lib/WikiDB/backend/PDO.php

Modified: trunk/lib/WikiDB/backend/PDO.php
===================================================================
--- trunk/lib/WikiDB/backend/PDO.php	2021-09-03 10:18:08 UTC (rev 10534)
+++ trunk/lib/WikiDB/backend/PDO.php	2021-09-03 11:30:25 UTC (rev 10535)
@@ -1273,7 +1273,13 @@
      */
     function _unserialize($data)
     {
-        return empty($data) ? array() : unserialize($data);
+        if ($data === "") {
+            return array();
+        } else if (is_string($data)) {
+            return unserialize($data);
+        } else {
+            return array();
+        }
     }
 
     /* some variables and functions for DB backend abstraction (action=upgrade) */

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