From 8da26cada9ec4ac374aee602ea1075ecaa7e2275 Mon Sep 17 00:00:00 2001
From: Liam Morland <lkmorlan@uwaterloo.ca>
Date: Sat, 2 Apr 2022 20:48:11 -0400
Subject: [PATCH] Issue #3273143: Handle empty values in create_xfdf()

---
 xfdf.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xfdf.inc b/xfdf.inc
index aa40513..0f68835 100644
--- a/xfdf.inc
+++ b/xfdf.inc
@@ -33,7 +33,7 @@ function create_xfdf($file, array $info, $enc = 'UTF-8') {
     $field_ele->setAttribute('name', $name);
 
     $value_ele = $field_ele->appendChild($doc->createElement('value'));
-    $value_ele->appendChild($doc->createTextNode($value));
+    $value_ele->appendChild($doc->createTextNode($value ?: ''));
   }
 
   $ids_ele = $xfdf_ele->appendChild($doc->createElement('ids'));
-- 
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