From cde8fdcd599a299a606a90688563f55e146b8c42 Mon Sep 17 00:00:00 2001
From: Sven Reichel <github-sr@hotmail.com>
Date: Fri, 26 Jan 2024 00:38:54 +0100
Subject: [PATCH] Check for existence of Net_IDNA2

---
 library/Zend/Validate/Hostname.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/Zend/Validate/Hostname.php b/library/Zend/Validate/Hostname.php
index 43d6e0f1c5..234e2793e6 100644
--- a/library/Zend/Validate/Hostname.php
+++ b/library/Zend/Validate/Hostname.php
@@ -2444,9 +2444,11 @@ protected function checkDnsRecords($hostName)
                 $toAscii = idn_to_ascii($hostName);
             }
             $result = checkdnsrr($toAscii, 'A');
-        } else {
+        } elseif (class_exists('Net_IDNA2')) {
             $idn = new Net_IDNA2();
             $result = checkdnsrr($idn->encode($hostName), 'A');
+        } else {
+            $result = checkdnsrr($hostName, 'A');
         }
 
         return $result;