From c0e9455017b4abb482594569a06600dba5fc9f56 Mon Sep 17 00:00:00 2001
From: Dan Marsden <dan@danmarsden.com>
Date: Mon, 15 Jul 2013 14:45:33 +1200
Subject: [PATCH] check var exists before using

---
 sessions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sessions.php b/sessions.php
index cdef07a..046a596 100644
--- a/sessions.php
+++ b/sessions.php
@@ -208,7 +208,7 @@ function construct_sessions_data_for_add($formdata) {
         while ($sdate < $enddate) {
             if ($sdate < $startweek + WEEKSECS) {
                 $dinfo = usergetdate($sdate);
-                if (array_key_exists($wdaydesc[$dinfo['wday']], $formdata->sdays)) {
+                if (isset($formdata->sdays) && array_key_exists($wdaydesc[$dinfo['wday']], $formdata->sdays)) {
                     $sess = new stdClass();
                     $sess->sessdate =  usergetmidnight($sdate) + $starttime;
                     $sess->duration = $duration;