From: Michele Locati <michele@locati.it>
Date: Thu, 2 Nov 2023 12:31:03 +0100
Subject: [PATCH] Let Gettext loader support PHP 7.4

--- a/src/Translator/Loader/Gettext.php
+++ b/src/Translator/Loader/Gettext.php
@@ -139,7 +139,7 @@ class Gettext extends AbstractFileLoader
         }
 
         // Read header entries
-        if (array_key_exists('', $textDomain)) {
+        if ($textDomain->offsetExists('')) {
             $rawHeaders = explode("\n", trim($textDomain['']));
 
             foreach ($rawHeaders as $rawHeader) {