From 579e7016bb97f8d1ad64e407e3159138191fcbb6 Mon Sep 17 00:00:00 2001
From: Christian Heel <66922325+heelc29@users.noreply.github.com>
Date: Sun, 28 Sep 2025 18:25:27 +0200
Subject: [PATCH] [3.x][PHP8.5] Using null as an array offset is now deprecated

https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_using_values_null_as_an_array_offset_and_when_calling_array_key_exists
---
 src/StringHelper.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/StringHelper.php b/src/StringHelper.php
index 5748ecff..cbdb2137 100644
--- a/src/StringHelper.php
+++ b/src/StringHelper.php
@@ -54,6 +54,7 @@ abstract class StringHelper
      */
     public static function increment($string, $style = 'default', $n = 0)
     {
+        $style ??= 'default';
         $styleSpec = static::$incrementStyles[$style] ?? static::$incrementStyles['default'];
 
         // Regular expression search and replace patterns.