From 0953616c22f2a45135db7ee66d81187132f6f2f6 Mon Sep 17 00:00:00 2001
From: Sergei Predvoditelev <sergei@predvoditelev.ru>
Date: Thu, 27 Jul 2023 13:28:56 +0300
Subject: [PATCH 1/3] Fix incorrect split UTF-8 strings (#105)

---
 CHANGELOG.md               | 2 +-
 src/StringHelper.php       | 2 +-
 tests/StringHelperTest.php | 4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 671e77b..15b0c84 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 2.1.2 under development
 
-- no changes in this release.
+- Bug #105: Fix incorrect split UTF-8 strings in `StringHelper::split()` method (@vjik)
 
 ## 2.1.1 April 28, 2023
 
diff --git a/src/StringHelper.php b/src/StringHelper.php
index 46681ad..6f297ee 100644
--- a/src/StringHelper.php
+++ b/src/StringHelper.php
@@ -496,7 +496,7 @@ public static function base64UrlDecode(string $input): string
     public static function split(string $string, string $separator = '\R'): array
     {
         $string = preg_replace('(^\s*|\s*$)', '', $string);
-        return preg_split('~\s*' . $separator . '\s*~', $string, -1, PREG_SPLIT_NO_EMPTY);
+        return preg_split('~\s*' . $separator . '\s*~u', $string, -1, PREG_SPLIT_NO_EMPTY);
     }
 
     /**
diff --git a/tests/StringHelperTest.php b/tests/StringHelperTest.php
index a2b15da..4f16c46 100644
--- a/tests/StringHelperTest.php
+++ b/tests/StringHelperTest.php
@@ -407,6 +407,10 @@ public function dataSplit(): array
                 "\0\nA\nB",
                 ["\0", 'A', 'B'],
             ],
+            [
+                "технический\nдолг",
+                ['технический', 'долг'],
+            ],
         ];
     }
 

From eecd1874fe92933de1da2d6a0f7d6d1c4855450a Mon Sep 17 00:00:00 2001
From: Sergei Predvoditelev <sergei@predvoditelev.ru>
Date: Thu, 27 Jul 2023 10:35:49 +0000
Subject: [PATCH 2/3] Release version 2.1.2

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15b0c84..d1bd619 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Yii Strings Change Log
 
-## 2.1.2 under development
+## 2.1.2 July 27, 2023
 
 - Bug #105: Fix incorrect split UTF-8 strings in `StringHelper::split()` method (@vjik)
 

From 574a80296e193572ed8d3f7bedf99748e73ee627 Mon Sep 17 00:00:00 2001
From: Sergei Predvoditelev <sergei@predvoditelev.ru>
Date: Thu, 27 Jul 2023 10:35:52 +0000
Subject: [PATCH 3/3] Prepare for next release

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1bd619..0929f92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Yii Strings Change Log
 
+## 2.1.3 under development
+
+- no changes in this release.
+
 ## 2.1.2 July 27, 2023
 
 - Bug #105: Fix incorrect split UTF-8 strings in `StringHelper::split()` method (@vjik)