From e2f06d0b9405e0b5f80740b48230fe64ed33acd6 Mon Sep 17 00:00:00 2001
From: Ralf Becker <RalfBecker@outdoor-training.de>
Date: Tue, 23 Nov 2021 08:40:58 +0100
Subject: [PATCH] fix PHP 8.0 TypeError: count(): Argument #1 ($value) must be
 of type Countable|array, bool given

---
 importexport/inc/class.importexport_schedule_ui.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/importexport/inc/class.importexport_schedule_ui.inc.php b/importexport/inc/class.importexport_schedule_ui.inc.php
index 23d190f947..34acfb4cc0 100644
--- a/importexport/inc/class.importexport_schedule_ui.inc.php
+++ b/importexport/inc/class.importexport_schedule_ui.inc.php
@@ -317,7 +317,7 @@ class importexport_schedule_ui
 				'method'	=> 'HEAD',
 				'ignore_errors'	=> 1
 			)));
-			$headers = get_headers($data['target'],1);
+			$headers = get_headers($data['target'],1) ?: [];
 
 			// Reset...
 			stream_context_set_default(array('http'=>array(