From bb56f59fcf245c00ce7738f077955a3b2ca42606 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Mon, 15 Sep 2025 13:40:14 +0200
Subject: SimplePie merge upstream (#7967)

* https://github.com/simplepie/simplepie/pull/936 (Normalize encoding uppercase)
---
 lib/simplepie/simplepie/src/XML/Declaration/Parser.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/simplepie')

diff --git a/lib/simplepie/simplepie/src/XML/Declaration/Parser.php b/lib/simplepie/simplepie/src/XML/Declaration/Parser.php
index 1fcd22b9f..51023059c 100644
--- a/lib/simplepie/simplepie/src/XML/Declaration/Parser.php
+++ b/lib/simplepie/simplepie/src/XML/Declaration/Parser.php
@@ -242,7 +242,7 @@ class Parser
     public function encoding_value(): void
     {
         if ($encoding = $this->get_value()) {
-            $this->encoding = $encoding;
+            $this->encoding = strtoupper($encoding);
             $this->skip_whitespace();
             if ($this->has_data()) {
                 $this->state = self::STATE_STANDALONE_NAME;
-- 
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