From 0afb5a185996069ca2a36d445039fb28367d1a72 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Auswo=CC=88ger?= <martin@auswoeger.com>
Date: Wed, 12 Jun 2024 16:57:55 +0200
Subject: [PATCH] Ensure string type

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

diff --git a/src/Metadata/XmpFormat.php b/src/Metadata/XmpFormat.php
index 7f444de..a373ac8 100644
--- a/src/Metadata/XmpFormat.php
+++ b/src/Metadata/XmpFormat.php
@@ -239,7 +239,7 @@ private function buildXmp(array $metadata): string
 
         foreach ($metadata as $namespace => $attributes) {
             foreach ($attributes as $attribute => $values) {
-                if (!$values = array_filter($values, static function ($value): bool { return '' !== $value; })) {
+                if (!$values = array_filter($values, static function ($value): bool { return '' !== (string) $value; })) {
                     continue;
                 }