From d3588225db2b79c9704e782d9d3cb85873b5dec7 Mon Sep 17 00:00:00 2001
From: Taylor Vance <33555535+taylorvance@users.noreply.github.com>
Date: Wed, 18 Dec 2024 09:19:19 -0600
Subject: [PATCH] Use explicit nullable type for PHP 8.4

Implicitly marking parameter $length as nullable is deprecated, the explicit nullable type must be used instead
---
 src/MbWrapper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MbWrapper.php b/src/MbWrapper.php
index 34830de..31acd5a 100644
--- a/src/MbWrapper.php
+++ b/src/MbWrapper.php
@@ -342,7 +342,7 @@ private function iconvStrlen(string $str, string $charset) : int
         return $ret;
     }
     
-    private function iconvSubstr(string $str, string $charset, int $start, int $length = null) : string
+    private function iconvSubstr(string $str, string $charset, int $start, ?int $length = null) : string
     {
         $ret = @\iconv_substr($str, $start, $length, $charset . '//TRANSLIT//IGNORE');
         if ($ret === false) {