From bca27c374cc3a82045baafbe7d8045c842ed80e3 Mon Sep 17 00:00:00 2001
From: Abdul Malik Ikhsan <samsonasik@gmail.com>
Date: Tue, 26 Aug 2025 20:13:41 +0700
Subject: [PATCH 1/3] [TypeDeclaration] Skip integer index on string on
 AddArrowFunctionParamArrayWhereDimFetchRector

---
 .../AddArrowFunctionParamArrayWhereDimFetchRector.php       | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rules/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector.php b/rules/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector.php
index 9e404ea0acc..7d04f95de39 100644
--- a/rules/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector.php
+++ b/rules/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector.php
@@ -146,6 +146,12 @@ private function resolveDimFetchVariableNames(Closure|ArrowFunction $closureExpr
 
         foreach ($arrayDimFetches as $arrayDimFetch) {
             if ($arrayDimFetch->var instanceof Variable) {
+                $type = $this->nodeTypeResolver->getNativeType($arrayDimFetch->var);
+
+                if ($type->isString()->yes()) {
+                    continue;
+                }
+
                 $usedDimFetchVariableNames[] = (string) $this->getName($arrayDimFetch->var);
             }
         }

From 33dde960e782b077f6229f05d8d253fae24061b9 Mon Sep 17 00:00:00 2001
From: Abdul Malik Ikhsan <samsonasik@gmail.com>
Date: Tue, 26 Aug 2025 20:13:45 +0700
Subject: [PATCH 2/3] [TypeDeclaration] Skip integer index on string on
 AddArrowFunctionParamArrayWhereDimFetchRector

---
 .../skip_integer_index_on_string.php.inc      | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc

diff --git a/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc b/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc
new file mode 100644
index 00000000000..fe64b1e7731
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc
@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\FuncCall\AddArrowFunctionParamArrayWhereDimFetchRector\Fixture;
+
+final class SkipFilledType
+{
+    public function run()
+    {
+        $username = 'john.doe';
+
+        $initials = implode(
+            '',
+            array_map(
+                static fn ($name): string => strtoupper((string) $name[0]),
+                explode('.', $username),
+            ),
+        );
+    }
+}

From 1c00f8881f6018e8cca0f0ed1776c46e9eeb9c5c Mon Sep 17 00:00:00 2001
From: Abdul Malik Ikhsan <samsonasik@gmail.com>
Date: Tue, 26 Aug 2025 20:15:28 +0700
Subject: [PATCH 3/3] [TypeDeclaration] Skip integer index on string on
 AddArrowFunctionParamArrayWhereDimFetchRector

---
 .../Fixture/skip_integer_index_on_string.php.inc                | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc b/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc
index fe64b1e7731..1846fac2c0d 100644
--- a/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc
+++ b/rules-tests/TypeDeclaration/Rector/FuncCall/AddArrowFunctionParamArrayWhereDimFetchRector/Fixture/skip_integer_index_on_string.php.inc
@@ -2,7 +2,7 @@
 
 namespace Rector\Tests\TypeDeclaration\Rector\FuncCall\AddArrowFunctionParamArrayWhereDimFetchRector\Fixture;
 
-final class SkipFilledType
+final class SkipIntegerIndexOnString
 {
     public function run()
     {