diff --git a/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/different_named_arg.php.inc b/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/different_named_arg.php.inc
new file mode 100644
index 00000000000..2b1fb39b51e
--- /dev/null
+++ b/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/different_named_arg.php.inc
@@ -0,0 +1,27 @@
+<?php
+
+namespace Rector\Tests\Php81\Rector\FuncCall\NullToStrictIntPregSlitFuncCallLimitArgRector\Fixture;
+
+class DifferentNamedArg
+{
+    public function run($output)
+    {
+        preg_split('/\s/', $output, NULL, flags: PREG_SPLIT_NO_EMPTY);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\Php81\Rector\FuncCall\NullToStrictIntPregSlitFuncCallLimitArgRector\Fixture;
+
+class DifferentNamedArg
+{
+    public function run($output)
+    {
+        preg_split('/\s/', $output, 0, flags: PREG_SPLIT_NO_EMPTY);
+    }
+}
+
+?>
diff --git a/rules/DeadCode/Rector/ClassMethod/RemoveEmptyClassMethodRector.php b/rules/DeadCode/Rector/ClassMethod/RemoveEmptyClassMethodRector.php
index 35422b5565b..81380fdbef7 100644
--- a/rules/DeadCode/Rector/ClassMethod/RemoveEmptyClassMethodRector.php
+++ b/rules/DeadCode/Rector/ClassMethod/RemoveEmptyClassMethodRector.php
@@ -5,7 +5,6 @@
 namespace Rector\DeadCode\Rector\ClassMethod;
 
 use PhpParser\Node;
-use PhpParser\Node\Name\FullyQualified;
 use PhpParser\Node\Stmt\Class_;
 use PhpParser\Node\Stmt\ClassMethod;
 use PHPStan\PhpDocParser\Ast\PhpDoc\DeprecatedTagValueNode;
diff --git a/rules/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector.php b/rules/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector.php
index db3b77d0e91..766bbf06fbf 100644
--- a/rules/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector.php
+++ b/rules/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector.php
@@ -5,9 +5,7 @@
 namespace Rector\Php81\Rector\FuncCall;
 
 use PhpParser\Node;
-use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\FuncCall;
-use PhpParser\Node\Identifier;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\ClassReflection;
 use PHPStan\Reflection\FunctionReflection;
@@ -88,13 +86,7 @@ public function refactor(Node $node): ?Node
         }
 
         $args = $node->getArgs();
-        $position = $this->argsAnalyzer->hasNamedArg($args)
-            ? $this->resolveNamedPosition($args)
-            : 2;
-
-        if ($position === null) {
-            return null;
-        }
+        $position = $this->argsAnalyzer->resolveArgPosition($args, 'limit', 2);
 
         if (! isset($args[$position])) {
             return null;
@@ -131,26 +123,6 @@ public function provideMinPhpVersion(): int
         return PhpVersionFeature::DEPRECATE_NULL_ARG_IN_STRING_FUNCTION;
     }
 
-    /**
-     * @param Arg[] $args
-     */
-    private function resolveNamedPosition(array $args): ?int
-    {
-        foreach ($args as $position => $arg) {
-            if (! $arg->name instanceof Identifier) {
-                continue;
-            }
-
-            if (! $this->isName($arg->name, 'limit')) {
-                continue;
-            }
-
-            return $position;
-        }
-
-        return null;
-    }
-
     private function shouldSkip(FuncCall $funcCall): bool
     {
         if (! $this->isName($funcCall, 'preg_split')) {
diff --git a/rules/Php85/Rector/Class_/SleepToSerializeRector.php b/rules/Php85/Rector/Class_/SleepToSerializeRector.php
index a389d570d96..c70198b7f1d 100644
--- a/rules/Php85/Rector/Class_/SleepToSerializeRector.php
+++ b/rules/Php85/Rector/Class_/SleepToSerializeRector.php
@@ -4,6 +4,8 @@
 
 namespace Rector\Php85\Rector\Class_;
 
+use PhpParser\Node\Scalar\String_;
+use PhpParser\Node\Expr\Variable;
 use PhpParser\Node;
 use PhpParser\Node\Expr\Array_;
 use PhpParser\Node\Expr\ArrayItem;
@@ -28,8 +30,8 @@
 final class SleepToSerializeRector extends AbstractRector implements MinPhpVersionInterface
 {
     public function __construct(
-        private BetterNodeFinder $betterNodeFinder,
-        private ReturnAnalyzer $returnAnalyzer
+        private readonly BetterNodeFinder $betterNodeFinder,
+        private readonly ReturnAnalyzer $returnAnalyzer
     ) {
     }
 
@@ -110,18 +112,19 @@ public function refactor(Node $node): ?Node
                 return null;
             }
 
-            if (count($return->expr->items) > 0) {
+            if ($return->expr->items !== []) {
                 $newItems = [];
                 foreach ($return->expr->items as $item) {
-                    if ($item !== null && $item->value instanceof Node\Scalar\String_) {
+                    if ($item !== null && $item->value instanceof String_) {
                         $propName = $item->value->value;
                         $newItems[] = new ArrayItem(
-                            new PropertyFetch(new Node\Expr\Variable('this'), $propName),
+                            new PropertyFetch(new Variable('this'), $propName),
                             $item->value
                         );
                     }
                 }
-                if (count($newItems) > 0) {
+
+                if ($newItems !== []) {
                     $hasChanged = true;
                     $return->expr->items = $newItems;
                 }
diff --git a/rules/Php85/Rector/FuncCall/ArrayKeyExistsNullToEmptyStringRector.php b/rules/Php85/Rector/FuncCall/ArrayKeyExistsNullToEmptyStringRector.php
index 9f2f649ead6..9618aa6afed 100644
--- a/rules/Php85/Rector/FuncCall/ArrayKeyExistsNullToEmptyStringRector.php
+++ b/rules/Php85/Rector/FuncCall/ArrayKeyExistsNullToEmptyStringRector.php
@@ -5,12 +5,11 @@
 namespace Rector\Php85\Rector\FuncCall;
 
 use PhpParser\Node;
-use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\FuncCall;
-use PhpParser\Node\Identifier;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\ClassReflection;
 use PHPStan\Reflection\FunctionReflection;
+use Rector\NodeAnalyzer\ArgsAnalyzer;
 use Rector\NodeTypeResolver\Node\AttributeKey;
 use Rector\NodeTypeResolver\PHPStan\ParametersAcceptorSelectorVariantsWrapper;
 use Rector\Php81\NodeManipulator\NullToStrictStringIntConverter;
@@ -29,7 +28,8 @@ final class ArrayKeyExistsNullToEmptyStringRector extends AbstractRector impleme
 {
     public function __construct(
         private readonly ReflectionResolver $reflectionResolver,
-        private readonly NullToStrictStringIntConverter $nullToStrictStringIntConverter
+        private readonly NullToStrictStringIntConverter $nullToStrictStringIntConverter,
+        private readonly ArgsAnalyzer $argsAnalyzer
     ) {
     }
 
@@ -93,7 +93,7 @@ public function refactor(Node $node): ?Node
         $result = $this->nullToStrictStringIntConverter->convertIfNull(
             $node,
             $args,
-            $this->resolvePosition($args),
+            $this->argsAnalyzer->resolveArgPosition($args, 'key', 0),
             $isTrait,
             $scope,
             $parametersAcceptor
@@ -109,18 +109,4 @@ public function provideMinPhpVersion(): int
     {
         return PhpVersionFeature::DEPRECATE_NULL_ARG_IN_ARRAY_KEY_EXISTS_FUNCTION;
     }
-
-    /**
-     * @param Arg[] $args
-     */
-    private function resolvePosition(array $args): int
-    {
-        foreach ($args as $position => $arg) {
-            if ($arg->name instanceof Identifier && $arg->name->toString() === 'key') {
-                return $position;
-            }
-        }
-
-        return 0;
-    }
 }
diff --git a/src/NodeAnalyzer/ArgsAnalyzer.php b/src/NodeAnalyzer/ArgsAnalyzer.php
index e961df92f9d..504900b95ba 100644
--- a/src/NodeAnalyzer/ArgsAnalyzer.php
+++ b/src/NodeAnalyzer/ArgsAnalyzer.php
@@ -6,9 +6,15 @@
 
 use PhpParser\Node\Arg;
 use PhpParser\Node\Identifier;
+use Rector\NodeNameResolver\NodeNameResolver;
 
-final class ArgsAnalyzer
+final readonly class ArgsAnalyzer
 {
+    public function __construct(
+        private NodeNameResolver $nodeNameResolver
+    ) {
+    }
+
     /**
      * @param Arg[] $args
      */
@@ -22,4 +28,24 @@ public function hasNamedArg(array $args): bool
 
         return false;
     }
+
+    /**
+     * @param Arg[] $args
+     */
+    public function resolveArgPosition(array $args, string $name, int $defaultPosition): int
+    {
+        foreach ($args as $position => $arg) {
+            if (! $arg->name instanceof Identifier) {
+                continue;
+            }
+
+            if (! $this->nodeNameResolver->isName($arg->name, $name)) {
+                continue;
+            }
+
+            return $position;
+        }
+
+        return $defaultPosition;
+    }
 }