X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Fimap_messages.php;h=e7df007bbc75981942b0c0d738db1aa713044e55;hp=19ce2d7f006d67dc626e5162d975b18e476d871b;hb=c97c9b89aef0309233f193a3948447c53a76b9cc;hpb=d1c87b1266294a58aac6e65d95c9ab34d1553de8

diff --git a/functions/imap_messages.php b/functions/imap_messages.php
index 19ce2d7f..e7df007b 100755
--- a/functions/imap_messages.php
+++ b/functions/imap_messages.php
@@ -231,7 +231,9 @@ function get_squirrel_sort($imap_stream, $sSortField, $reverse = false, $aUid =
 
     // sqimap_get_small_header (see above) returns fields in lower case,
     // but the code below uses all upper case
-    foreach ($msgs as $k => $v) $msgs[$k][strtoupper($sSortField)] = $msgs[$k][strtolower($sSortField)];
+    foreach ($msgs as $k => $v) 
+        if (isset($msgs[$k][strtolower($sSortField)])) 
+            $msgs[$k][strtoupper($sSortField)] = $msgs[$k][strtolower($sSortField)];
 
     $aUid = array();
     $walk = false;