From 07f2dcd989a517cdc60497fabcca58b91a13a7b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20H=C3=A4drich?=
 <11225821+shaedrich@users.noreply.github.com>
Date: Sun, 20 Jul 2025 01:07:20 +0200
Subject: [PATCH 1/2] consistent use of mb_split to split strings into words
 with multi-byte support

---
 src/Illuminate/Support/Str.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Illuminate/Support/Str.php b/src/Illuminate/Support/Str.php
index 764acf47fc5b..7e833c1be87b 100644
--- a/src/Illuminate/Support/Str.php
+++ b/src/Illuminate/Support/Str.php
@@ -1449,7 +1449,7 @@ public static function title($value)
      */
     public static function headline($value)
     {
-        $parts = explode(' ', $value);
+        $parts = mb_split('/\s+/', $value);
 
         $parts = count($parts) > 1
             ? array_map(static::title(...), $parts)
@@ -1482,7 +1482,7 @@ public static function apa($value)
 
         $endPunctuation = ['.', '!', '?', ':', '—', ','];
 
-        $words = preg_split('/\s+/', $value, -1, PREG_SPLIT_NO_EMPTY);
+        $words = mb_split('/\s+/', $value);
 
         for ($i = 0; $i < count($words); $i++) {
             $lowercaseWord = mb_strtolower($words[$i]);
@@ -1697,7 +1697,7 @@ public static function studly($value)
             return static::$studlyCache[$key];
         }
 
-        $words = explode(' ', static::replace(['-', '_'], ' ', $value));
+        $words = mb_split('/\s+/', static::replace(['-', '_'], ' ', $value));
 
         $studlyWords = array_map(fn ($word) => static::ucfirst($word), $words);
 

From d8a358f89f3e9f6a7702072dd7f3db2d0a9a7581 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20H=C3=A4drich?=
 <11225821+shaedrich@users.noreply.github.com>
Date: Sun, 20 Jul 2025 01:37:19 +0200
Subject: [PATCH 2/2] The $pattern argument doesn't use /pattern/ delimiters,
 unlike other regex functions such as preg_match

---
 src/Illuminate/Support/Str.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Illuminate/Support/Str.php b/src/Illuminate/Support/Str.php
index 7e833c1be87b..ffe670f6f9c5 100644
--- a/src/Illuminate/Support/Str.php
+++ b/src/Illuminate/Support/Str.php
@@ -1449,7 +1449,7 @@ public static function title($value)
      */
     public static function headline($value)
     {
-        $parts = mb_split('/\s+/', $value);
+        $parts = mb_split('\s+', $value);
 
         $parts = count($parts) > 1
             ? array_map(static::title(...), $parts)
@@ -1482,7 +1482,7 @@ public static function apa($value)
 
         $endPunctuation = ['.', '!', '?', ':', '—', ','];
 
-        $words = mb_split('/\s+/', $value);
+        $words = mb_split('\s+', $value);
 
         for ($i = 0; $i < count($words); $i++) {
             $lowercaseWord = mb_strtolower($words[$i]);
@@ -1697,7 +1697,7 @@ public static function studly($value)
             return static::$studlyCache[$key];
         }
 
-        $words = mb_split('/\s+/', static::replace(['-', '_'], ' ', $value));
+        $words = mb_split('\s+', static::replace(['-', '_'], ' ', $value));
 
         $studlyWords = array_map(fn ($word) => static::ucfirst($word), $words);