diff --git a/rules-tests/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector/Fixture/skip_new_line.php.inc b/rules-tests/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector/Fixture/skip_new_line.php.inc
new file mode 100644
index 00000000000..23e561fe8e9
--- /dev/null
+++ b/rules-tests/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector/Fixture/skip_new_line.php.inc
@@ -0,0 +1,14 @@
+<?php
+
+namespace Rector\Tests\CodingStyle\Rector\FuncCall\ConsistentPregDelimiterRector\Fixture;
+
+use Nette\Utils\Strings;
+
+class SkipNewLine
+{
+    public function run()
+    {
+        $content = 'some texte';
+        $parts = preg_split("/(\r\n|\n|\r){2}/", $content);
+    }
+}
diff --git a/rules/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector.php b/rules/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector.php
index 50c5094881f..472fccd5faf 100644
--- a/rules/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector.php
+++ b/rules/CodingStyle/Rector/FuncCall/ConsistentPregDelimiterRector.php
@@ -37,6 +37,20 @@ final class ConsistentPregDelimiterRector extends AbstractRector implements Allo
      */
     private const INNER_REGEX = '#(?<content>.*?)(?<close>[imsxeADSUXJu]*)$#s';
 
+    /**
+     * @var string
+     * @see https://regex101.com/r/nnuwUo/1
+     *
+     * For modifiers see https://www.php.net/manual/en/reference.pcre.pattern.modifiers.php
+     */
+    private const INNER_UNICODE_REGEX = '#(?<content>.*?)(?<close>[imsxeADSUXJu]*)$#u';
+
+    /**
+     * @var string
+     * @see https://regex101.com/r/KpCzg6/1
+     */
+    private const NEW_LINE_REGEX = '#(\\r|\\n)#';
+
     /**
      * @var string
      * @see https://regex101.com/r/EyXsV6/6
@@ -169,6 +183,26 @@ private function refactorFuncCall(FuncCall $funcCall): ?FuncCall
         return null;
     }
 
+    private function hasNewLineWithUnicodeModifier(string $string): bool
+    {
+        $matchInnerRegex = Strings::match($string, self::INNER_REGEX);
+        $matchInnerUnionRegex = Strings::match($string, self::INNER_UNICODE_REGEX);
+
+        if (! is_array($matchInnerRegex)) {
+            return false;
+        }
+
+        if (! is_array($matchInnerUnionRegex)) {
+            return false;
+        }
+
+        if ($matchInnerRegex === $matchInnerUnionRegex) {
+            return false;
+        }
+
+        return StringUtils::isMatch($matchInnerUnionRegex['content'], self::NEW_LINE_REGEX);
+    }
+
     private function refactorArgument(Arg $arg): void
     {
         if (! $arg->value instanceof String_) {
@@ -177,6 +211,11 @@ private function refactorArgument(Arg $arg): void
 
         /** @var String_ $string */
         $string = $arg->value;
+
+        if ($this->hasNewLineWithUnicodeModifier($string->value)) {
+            return;
+        }
+
         $string->value = Strings::replace($string->value, self::INNER_REGEX, function (array $match) use (
             &$string
         ): string {
diff --git a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
index 42f519db6b9..1fef3e31eb0 100644
--- a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
+++ b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
@@ -190,10 +190,12 @@ private function isStaticType(Type $type): bool
     /**
      * @param array<class-string<ReturnTypeInfererInterface>> $excludedInferers
      */
-    private function shouldSkipExcludedTypeInferer(ReturnTypeInfererInterface $return, array $excludedInferers): bool
-    {
+    private function shouldSkipExcludedTypeInferer(
+        ReturnTypeInfererInterface $returnTypeInferer,
+        array $excludedInferers
+    ): bool {
         foreach ($excludedInferers as $excludedInferer) {
-            if (is_a($return, $excludedInferer)) {
+            if (is_a($returnTypeInferer, $excludedInferer)) {
                 return true;
             }
         }