From 3bcd4b5370d6ae1b5c0822ba385294ca25263fc0 Mon Sep 17 00:00:00 2001
From: Adrien Crivelli <adrien.crivelli@gmail.com>
Date: Thu, 17 Feb 2022 16:37:24 +0100
Subject: [PATCH] PHP 8.1 compatibility

---
 src/PhpWord/TemplateProcessor.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PhpWord/TemplateProcessor.php b/src/PhpWord/TemplateProcessor.php
index 3f7770d3..664d4688 100644
--- a/src/PhpWord/TemplateProcessor.php
+++ b/src/PhpWord/TemplateProcessor.php
@@ -438,7 +438,7 @@ class TemplateProcessor
         if (is_null($value) && isset($inlineValue)) {
             $value = $inlineValue;
         }
-        if (!preg_match('/^([0-9]*(cm|mm|in|pt|pc|px|%|em|ex|)|auto)$/i', $value)) {
+        if (!preg_match('/^([0-9]*(cm|mm|in|pt|pc|px|%|em|ex|)|auto)$/i', isset($value) ? $value : '')) {
             $value = null;
         }
         if (is_null($value)) {