From 3b68655d35f775c69613d7b71c5ed1d404aa531b Mon Sep 17 00:00:00 2001
From: Michal Borychowski <807297+boryn@users.noreply.github.com>
Date: Fri, 19 Jul 2024 15:39:01 +0200
Subject: [PATCH] Pass context array key as string at validate0101()

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

diff --git a/src/Gelf/MessageValidator.php b/src/Gelf/MessageValidator.php
index 87bee46..dbefe8f 100644
--- a/src/Gelf/MessageValidator.php
+++ b/src/Gelf/MessageValidator.php
@@ -82,7 +82,7 @@ public function validate0101(MessageInterface $message, ?string &$reason = null)
         }
 
         foreach ($message->getAllAdditionals() as $key => $value) {
-            if (!preg_match('#^[\w\.\-]*$#', $key)) {
+            if (!preg_match('#^[\w\.\-]*$#', (string)$key)) {
                 $reason = sprintf(
                     "additional key '%s' contains invalid characters",
                     $key