diff --git a/packages/NodeTypeResolver/Node/AttributeKey.php b/packages/NodeTypeResolver/Node/AttributeKey.php
index fd0428c9c65..ad1f190438d 100644
--- a/packages/NodeTypeResolver/Node/AttributeKey.php
+++ b/packages/NodeTypeResolver/Node/AttributeKey.php
@@ -209,4 +209,10 @@ final class AttributeKey
      * @var string
      */
     public const CREATED_BY_RULE = 'created_by_rule';
+
+    /**
+     * Provided by PHPStan parser, depth in sense of nesting
+     * @var string
+     */
+    public const STATEMENT_DEPTH = 'statementDepth';
 }
diff --git a/packages/NodeTypeResolver/PHPStan/Scope/PHPStanNodeScopeResolver.php b/packages/NodeTypeResolver/PHPStan/Scope/PHPStanNodeScopeResolver.php
index cf2a5fcfe6f..da6e593ec49 100644
--- a/packages/NodeTypeResolver/PHPStan/Scope/PHPStanNodeScopeResolver.php
+++ b/packages/NodeTypeResolver/PHPStan/Scope/PHPStanNodeScopeResolver.php
@@ -41,6 +41,11 @@ final class PHPStanNodeScopeResolver
      */
     private const ANONYMOUS_CLASS_START_REGEX = '#^AnonymousClass(\w+)#';
 
+    /**
+     * @var string
+     */
+    private const CONTEXT = 'context';
+
     public function __construct(
         private ChangedFilesDetector $changedFilesDetector,
         private DependencyResolver $dependencyResolver,
@@ -74,7 +79,7 @@ public function processNodes(array $stmts, SmartFileInfo $smartFileInfo): array
 
                 $scopeContext = $this->traitScopeFaker->createDummyClassScopeContext($scope);
                 $traitScope = clone $scope;
-                $this->privatesAccessor->setPrivateProperty($traitScope, 'context', $scopeContext);
+                $this->privatesAccessor->setPrivateProperty($traitScope, self::CONTEXT, $scopeContext);
 
                 $traitScope = $traitScope->enterTrait($traitReflectionClass);
 
diff --git a/rules/CodingStyle/Rector/FuncCall/CountArrayToEmptyArrayComparisonRector.php b/rules/CodingStyle/Rector/FuncCall/CountArrayToEmptyArrayComparisonRector.php
index 66e05998468..8fadf07cefc 100644
--- a/rules/CodingStyle/Rector/FuncCall/CountArrayToEmptyArrayComparisonRector.php
+++ b/rules/CodingStyle/Rector/FuncCall/CountArrayToEmptyArrayComparisonRector.php
@@ -88,7 +88,6 @@ public function refactor(Node $node): ?Node
         }
 
         $parent = $node->getAttribute(AttributeKey::PARENT_NODE);
-
         if (! $parent instanceof Node) {
             return null;
         }
diff --git a/rules/Php80/Rector/Class_/ClassPropertyAssignToConstructorPromotionRector.php b/rules/Php80/Rector/Class_/ClassPropertyAssignToConstructorPromotionRector.php
index cd9bf94ddc8..6d015fe2517 100644
--- a/rules/Php80/Rector/Class_/ClassPropertyAssignToConstructorPromotionRector.php
+++ b/rules/Php80/Rector/Class_/ClassPropertyAssignToConstructorPromotionRector.php
@@ -57,8 +57,9 @@ class SomeClass
 {
     public float $someVariable;
 
-    public function __construct(float $someVariable = 0.0)
-    {
+    public function __construct(
+        float $someVariable = 0.0
+    ) {
         $this->someVariable = $someVariable;
     }
 }
@@ -67,8 +68,9 @@ public function __construct(float $someVariable = 0.0)
                     <<<'CODE_SAMPLE'
 class SomeClass
 {
-    public function __construct(private float $someVariable = 0.0)
-    {
+    public function __construct(
+        private float $someVariable = 0.0
+    ) {
     }
 }
 CODE_SAMPLE
diff --git a/rules/Php80/ValueObject/CondAndExpr.php b/rules/Php80/ValueObject/CondAndExpr.php
index 8ccfa334714..889a3699747 100644
--- a/rules/Php80/ValueObject/CondAndExpr.php
+++ b/rules/Php80/ValueObject/CondAndExpr.php
@@ -10,10 +10,10 @@
 final class CondAndExpr
 {
     /**
-     * @param Expr[] $condExprs
+     * @param Expr[]|null $condExprs
      */
     public function __construct(
-        private array $condExprs,
+        private array|null $condExprs,
         private Expr $expr,
         private MatchKind $matchKind
     ) {
@@ -25,7 +25,7 @@ public function getExpr(): Expr
     }
 
     /**
-     * @return Expr[]
+     * @return Expr[]|null
      */
     public function getCondExprs(): array|null
     {
diff --git a/rules/Renaming/Rector/FuncCall/RenameFunctionRector.php b/rules/Renaming/Rector/FuncCall/RenameFunctionRector.php
index e80e13a056a..0d53bce5161 100644
--- a/rules/Renaming/Rector/FuncCall/RenameFunctionRector.php
+++ b/rules/Renaming/Rector/FuncCall/RenameFunctionRector.php
@@ -77,11 +77,11 @@ public function refactor(Node $node): ?Node
     }
 
     /**
-     * @param array<string, array<string, string>> $configuration
+     * @param array<string, mixed[]> $configuration
      */
     public function configure(array $configuration): void
     {
-        $oldFunctionToNewFunction = $configuration[self::OLD_FUNCTION_TO_NEW_FUNCTION] ?? [];
+        $oldFunctionToNewFunction = $configuration[self::OLD_FUNCTION_TO_NEW_FUNCTION] ?? $configuration ?: [];
         Assert::allString($oldFunctionToNewFunction);
         Assert::allString(array_values($oldFunctionToNewFunction));
 
diff --git a/tests/Issues/Issue6675/Fixture/bare_stmts.php.inc b/tests/Issues/Issue6675/Fixture/bare_stmts.php.inc
new file mode 100644
index 00000000000..838f67caf97
--- /dev/null
+++ b/tests/Issues/Issue6675/Fixture/bare_stmts.php.inc
@@ -0,0 +1,23 @@
+<?php
+
+namespace Rector\Core\Tests\Issues\Issue6675\Fixture;
+
+function someFunction()
+{
+    $db = mysql_connect("server", "user", "password");
+    echo mysql_error();
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Core\Tests\Issues\Issue6675\Fixture;
+
+function someFunction()
+{
+    $db = mysqli_connect("server", "user", "password");
+    echo mysqli_error($db);
+}
+
+?>
diff --git a/tests/Issues/Issue6675/Fixture/no_namespace.php.inc b/tests/Issues/Issue6675/Fixture/no_namespace.php.inc
index 24544a8c9ff..c7e708c5908 100644
--- a/tests/Issues/Issue6675/Fixture/no_namespace.php.inc
+++ b/tests/Issues/Issue6675/Fixture/no_namespace.php.inc
@@ -1,13 +1,13 @@
 <?php
 
-$db = mysql_connect("server","user","password");
+$db = mysql_connect("server", "user", "password");
 echo mysql_error();
 
 ?>
 -----
 <?php
 
-$db = mysqli_connect("server","user","password");
+$db = mysqli_connect("server", "user", "password");
 echo mysqli_error($db);
 
 ?>