phpBB/phpbb/language/language_file_helper.php

@@ -135,6 +135,17 @@ class language_file_helper
 	 */
 	private static function sort_by_local_name(mixed $a, mixed $b): int
 	{
-		return $a['local_name'] <=> $b['local_name'];
+		if ($a['local_name'] > $b['local_name'])
+		{
+			return 1;
+		}
+		else if ($a['local_name'] < $b['local_name'])
+		{
+			return -1;
+		}
+		else
+		{
+			return 0;
+		}
 	}
 }