From dbf643cb8d2de40b8742da141dc7c9ec355716ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20=C3=96sterreicher?= <oesi@technikum-wien.at>
Date: Mon, 11 Dec 2017 17:43:25 +0100
Subject: [PATCH] Fixed export Bug with PHP5.4

---
 include/dokument_export.class.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/dokument_export.class.php b/include/dokument_export.class.php
index e6628ceaa..3b5b76b21 100644
--- a/include/dokument_export.class.php
+++ b/include/dokument_export.class.php
@@ -48,7 +48,13 @@ class dokument_export
 
 		exec('unoconv --version',$ret_arr);
 		if(isset($ret_arr[0]))
-			$this->unoconv_version = explode(' ',$ret_arr[0])[1];
+		{
+			$hlp = explode(' ',$ret_arr[0]);
+			if(isset($hlp[1]))
+				$this->unoconv_version = $hlp[1];
+			else
+				die('Could not get Unoconv Version');
+		}
 		else
 			die('Unoconv not found');