From 64c1c126c0888126fa41a82ec8b2075a855ce186 Mon Sep 17 00:00:00 2001
From: nicorac <nicorac@yahoo.com>
Date: Tue, 18 Dec 2018 16:04:22 +0100
Subject: [PATCH] Function calendar_ical.aggregate_periods() returns only the
 last event

---
 calendar/inc/class.calendar_ical.inc.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/calendar/inc/class.calendar_ical.inc.php b/calendar/inc/class.calendar_ical.inc.php
index d8fd5da112..d161c81773 100644
--- a/calendar/inc/class.calendar_ical.inc.php
+++ b/calendar/inc/class.calendar_ical.inc.php
@@ -3300,9 +3300,9 @@ class calendar_ical extends calendar_boupdate
 		// sort by start datetime
 		uasort($events, function($a, $b)
 		{
-			$diff = $a['start'] < $b['start'];
+			$diff = $a['start'] - $b['start'];
 
-			return !$diff ? 0 : ($diff < 0 ? -1 : 1);
+			return $diff == 0 ? 0 : ($diff < 0 ? -1 : 1);
 		});
 
 		$fbdata = array();