From f7ad198d7ec6def1a3c6355c1c8292e2b5a353ff Mon Sep 17 00:00:00 2001
From: Aleksandra <a.v.staroverkina@gmail.com>
Date: Thu, 30 Aug 2018 19:08:20 +0300
Subject: [PATCH] trying to property of non-object is repaired

$tNode can be null, if the cell is empty.
---
 src/Spout/Reader/XLSX/Helper/CellValueFormatter.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Spout/Reader/XLSX/Helper/CellValueFormatter.php b/src/Spout/Reader/XLSX/Helper/CellValueFormatter.php
index b4c6256..2cc770b 100644
--- a/src/Spout/Reader/XLSX/Helper/CellValueFormatter.php
+++ b/src/Spout/Reader/XLSX/Helper/CellValueFormatter.php
@@ -125,6 +125,11 @@ class CellValueFormatter
         // inline strings are formatted this way:
         // <c r="A1" t="inlineStr"><is><t>[INLINE_STRING]</t></is></c>
         $tNode = $node->getElementsByTagName(self::XML_NODE_INLINE_STRING_VALUE)->item(0);
+        
+        if ($tNode === null) {
+            return null;
+        }
+        
         $cellValue = $this->escaper->unescape($tNode->nodeValue);
         return $cellValue;
     }