From 79e9b3b6ca67e168bea5f9125a6f970ce019176b Mon Sep 17 00:00:00 2001
From: Martijn van Kekem <martijn@vankekem.com>
Date: Wed, 17 Jan 2024 15:45:42 +0100
Subject: [PATCH] Check for string-type parameter VALUE

---
 lib/Document.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Document.php b/lib/Document.php
index 6f87b5b97..94815715a 100644
--- a/lib/Document.php
+++ b/lib/Document.php
@@ -188,7 +188,7 @@ public function createProperty(string $name, $value = null, ?array $parameters =
 
         if (is_null($class)) {
             // If a VALUE parameter is supplied, we should use that.
-            if (isset($parameters['VALUE'])) {
+            if (isset($parameters['VALUE']) && is_string($parameters['VALUE'])) {
                 $class = $this->getClassNameForPropertyValue($parameters['VALUE']);
                 if (is_null($class)) {
                     throw new InvalidDataException('Unsupported VALUE parameter for '.$name.' property. You supplied "'.$parameters['VALUE'].'"');