diff --git a/src/Analyser/MutatingScope.php b/src/Analyser/MutatingScope.php
index e7afd055e4..82ddd83e88 100644
--- a/src/Analyser/MutatingScope.php
+++ b/src/Analyser/MutatingScope.php
@@ -3138,7 +3138,7 @@ private function enterFunctionLike(
 
 			$paramExprString = '$' . $parameter->getName();
 			if ($parameter->isVariadic()) {
-				if ($this->phpVersion->supportsNamedArguments() && $functionReflection->acceptsNamedArguments()->yes()) {
+				if (!$this->getPhpVersion()->supportsNamedArguments()->no() && $functionReflection->acceptsNamedArguments()->yes()) {
 					$parameterType = new ArrayType(new UnionType([new IntegerType(), new StringType()]), $parameterType);
 				} else {
 					$parameterType = TypeCombinator::intersect(new ArrayType(new IntegerType(), $parameterType), new AccessoryArrayListType());
@@ -3153,7 +3153,7 @@ private function enterFunctionLike(
 
 			$nativeParameterType = $parameter->getNativeType();
 			if ($parameter->isVariadic()) {
-				if ($this->phpVersion->supportsNamedArguments() && $functionReflection->acceptsNamedArguments()->yes()) {
+				if (!$this->getPhpVersion()->supportsNamedArguments()->no() && $functionReflection->acceptsNamedArguments()->yes()) {
 					$nativeParameterType = new ArrayType(new UnionType([new IntegerType(), new StringType()]), $nativeParameterType);
 				} else {
 					$nativeParameterType = TypeCombinator::intersect(new ArrayType(new IntegerType(), $nativeParameterType), new AccessoryArrayListType());
@@ -3628,7 +3628,7 @@ public function getFunctionType($type, bool $isNullable, bool $isVariadic): Type
 			);
 		}
 		if ($isVariadic) {
-			if ($this->phpVersion->supportsNamedArguments()) {
+			if (!$this->getPhpVersion()->supportsNamedArguments()->no()) {
 				return new ArrayType(new UnionType([new IntegerType(), new StringType()]), $this->getFunctionType(
 					$type,
 					false,
diff --git a/src/Php/PhpVersions.php b/src/Php/PhpVersions.php
index 7bdc70e3bf..74474b28b0 100644
--- a/src/Php/PhpVersions.php
+++ b/src/Php/PhpVersions.php
@@ -28,4 +28,9 @@ public function producesWarningForFinalPrivateMethods(): TrinaryLogic
 		return IntegerRangeType::fromInterval(80000, null)->isSuperTypeOf($this->phpVersions)->result;
 	}
 
+	public function supportsNamedArguments(): TrinaryLogic
+	{
+		return IntegerRangeType::fromInterval(80000, null)->isSuperTypeOf($this->phpVersions)->result;
+	}
+
 }
diff --git a/src/Rules/FunctionCallParametersCheck.php b/src/Rules/FunctionCallParametersCheck.php
index d320c24d60..82741e6c14 100644
--- a/src/Rules/FunctionCallParametersCheck.php
+++ b/src/Rules/FunctionCallParametersCheck.php
@@ -6,7 +6,6 @@
 use PhpParser\Node\Expr;
 use PHPStan\Analyser\MutatingScope;
 use PHPStan\Analyser\Scope;
-use PHPStan\Php\PhpVersion;
 use PHPStan\Reflection\ExtendedParameterReflection;
 use PHPStan\Reflection\ParameterReflection;
 use PHPStan\Reflection\ParametersAcceptor;
@@ -42,7 +41,6 @@ final class FunctionCallParametersCheck
 	public function __construct(
 		private RuleLevelHelper $ruleLevelHelper,
 		private NullsafeCheck $nullsafeCheck,
-		private PhpVersion $phpVersion,
 		private UnresolvableTypeHelper $unresolvableTypeHelper,
 		private PropertyReflectionFinder $propertyReflectionFinder,
 		private bool $checkArgumentTypes,
@@ -201,7 +199,7 @@ public function check(
 			];
 		}
 
-		if ($hasNamedArguments && !$this->phpVersion->supportsNamedArguments() && !(bool) $funcCall->getAttribute('isAttribute', false)) {
+		if ($hasNamedArguments && !$scope->getPhpVersion()->supportsNamedArguments()->yes() && !(bool) $funcCall->getAttribute('isAttribute', false)) {
 			$errors[] = RuleErrorBuilder::message('Named arguments are supported only on PHP 8.0 and later.')
 				->identifier('argument.namedNotSupported')
 				->line($funcCall->getStartLine())
diff --git a/tests/PHPStan/Analyser/Bug9307CallMethodsRuleTest.php b/tests/PHPStan/Analyser/Bug9307CallMethodsRuleTest.php
index a49a650286..ff1be83109 100644
--- a/tests/PHPStan/Analyser/Bug9307CallMethodsRuleTest.php
+++ b/tests/PHPStan/Analyser/Bug9307CallMethodsRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Analyser;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\FunctionCallParametersCheck;
 use PHPStan\Rules\Methods\CallMethodsRule;
 use PHPStan\Rules\Methods\MethodCallCheck;
@@ -12,7 +11,6 @@
 use PHPStan\Rules\Rule;
 use PHPStan\Rules\RuleLevelHelper;
 use PHPStan\Testing\RuleTestCase;
-use const PHP_VERSION_ID;
 
 /**
  * @extends RuleTestCase<CallMethodsRule>
@@ -26,7 +24,7 @@ protected function getRule(): Rule
 		$ruleLevelHelper = new RuleLevelHelper($reflectionProvider, true, false, true, true, false, false);
 		return new CallMethodsRule(
 			new MethodCallCheck($reflectionProvider, $ruleLevelHelper, true, true),
-			new FunctionCallParametersCheck($ruleLevelHelper, new NullsafeCheck(), new PhpVersion(PHP_VERSION_ID), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
+			new FunctionCallParametersCheck($ruleLevelHelper, new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
 		);
 	}
 
diff --git a/tests/PHPStan/Analyser/nsrt/bug-2600-php-version-scope.php b/tests/PHPStan/Analyser/nsrt/bug-2600-php-version-scope.php
new file mode 100644
index 0000000000..bf13358857
--- /dev/null
+++ b/tests/PHPStan/Analyser/nsrt/bug-2600-php-version-scope.php
@@ -0,0 +1,26 @@
+<?php // lint > 7.4
+
+namespace Bug2600PhpVersionScope;
+
+use function PHPStan\Testing\assertType;
+
+if (PHP_VERSION_ID >= 80000) {
+	class Foo8 {
+		/**
+		 * @param mixed $x
+		 */
+		public function doBaz(...$x) {
+			assertType('array<int|string, mixed>', $x);
+		}
+	}
+} else {
+	class Foo9 {
+		/**
+		 * @param mixed $x
+		 */
+		public function doBaz(...$x) {
+			assertType('list<mixed>', $x);
+		}
+	}
+
+}
diff --git a/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php b/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
index 1d72b629a8..331c6dcaa2 100644
--- a/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Classes/ClassAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Classes;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -35,7 +34,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, $this->checkExplicitMixed, $this->checkImplicitMixed, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Classes/ClassConstantAttributesRuleTest.php b/tests/PHPStan/Rules/Classes/ClassConstantAttributesRuleTest.php
index d5787f8344..64b9783877 100644
--- a/tests/PHPStan/Rules/Classes/ClassConstantAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Classes/ClassConstantAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Classes;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Classes/ForbiddenNameCheckExtensionRuleTest.php b/tests/PHPStan/Rules/Classes/ForbiddenNameCheckExtensionRuleTest.php
index 4907d1d7ec..5286e079fc 100644
--- a/tests/PHPStan/Rules/Classes/ForbiddenNameCheckExtensionRuleTest.php
+++ b/tests/PHPStan/Rules/Classes/ForbiddenNameCheckExtensionRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Classes;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
 use PHPStan\Rules\ClassNameCheck;
@@ -26,7 +25,7 @@ protected function getRule(): Rule
 		$reflectionProvider = $this->createReflectionProvider();
 		return new InstantiationRule(
 			$reflectionProvider,
-			new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false), new NullsafeCheck(), new PhpVersion(80000), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
+			new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false), new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
 			new ClassNameCheck(
 				new ClassCaseSensitivityCheck($reflectionProvider, true),
 				new ClassForbiddenNameCheck(self::getContainer()),
diff --git a/tests/PHPStan/Rules/Classes/InstantiationRuleTest.php b/tests/PHPStan/Rules/Classes/InstantiationRuleTest.php
index 43b9091daf..e4155ce55b 100644
--- a/tests/PHPStan/Rules/Classes/InstantiationRuleTest.php
+++ b/tests/PHPStan/Rules/Classes/InstantiationRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Classes;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
 use PHPStan\Rules\ClassNameCheck;
@@ -26,7 +25,7 @@ protected function getRule(): Rule
 		$reflectionProvider = $this->createReflectionProvider();
 		return new InstantiationRule(
 			$reflectionProvider,
-			new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false), new NullsafeCheck(), new PhpVersion(80000), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
+			new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false), new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
 			new ClassNameCheck(
 				new ClassCaseSensitivityCheck($reflectionProvider, true),
 				new ClassForbiddenNameCheck(self::getContainer()),
@@ -290,6 +289,10 @@ public function testBug4056(): void
 
 	public function testNamedArguments(): void
 	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->analyse([__DIR__ . '/data/instantiation-named-arguments.php'], [
 			[
 				'Missing parameter $j (int) in call to InstantiationNamedArguments\Foo constructor.',
@@ -501,6 +504,10 @@ public function testBug10248(): void
 
 	public function testBug11815(): void
 	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->analyse([__DIR__ . '/data/bug-11815.php'], []);
 	}
 
diff --git a/tests/PHPStan/Rules/EnumCases/EnumCaseAttributesRuleTest.php b/tests/PHPStan/Rules/EnumCases/EnumCaseAttributesRuleTest.php
index 52428ced2b..d61265e3e7 100644
--- a/tests/PHPStan/Rules/EnumCases/EnumCaseAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/EnumCases/EnumCaseAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\EnumCases;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80100),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Functions/ArrowFunctionAttributesRuleTest.php b/tests/PHPStan/Rules/Functions/ArrowFunctionAttributesRuleTest.php
index af9266b7e5..1be1cfae69 100644
--- a/tests/PHPStan/Rules/Functions/ArrowFunctionAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/ArrowFunctionAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Functions/CallCallablesRuleTest.php b/tests/PHPStan/Rules/Functions/CallCallablesRuleTest.php
index 31a92a4f92..a8ffcaf800 100644
--- a/tests/PHPStan/Rules/Functions/CallCallablesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/CallCallablesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\FunctionCallParametersCheck;
 use PHPStan\Rules\NullsafeCheck;
 use PHPStan\Rules\PhpDoc\UnresolvableTypeHelper;
@@ -27,7 +26,6 @@ protected function getRule(): Rule
 			new FunctionCallParametersCheck(
 				$ruleLevelHelper,
 				new NullsafeCheck(),
-				new PhpVersion(80000),
 				new UnresolvableTypeHelper(),
 				new PropertyReflectionFinder(),
 				true,
@@ -158,6 +156,10 @@ public function testRule(): void
 
 	public function testNamedArguments(): void
 	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->analyse([__DIR__ . '/data/callables-named-arguments.php'], [
 			[
 				'Missing parameter $j (int) in call to closure.',
diff --git a/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php b/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
index af3d4af2c3..4d6ab921b7 100644
--- a/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\FunctionCallParametersCheck;
 use PHPStan\Rules\NullsafeCheck;
 use PHPStan\Rules\PhpDoc\UnresolvableTypeHelper;
@@ -28,7 +27,7 @@ protected function getRule(): Rule
 		$broker = $this->createReflectionProvider();
 		return new CallToFunctionParametersRule(
 			$broker,
-			new FunctionCallParametersCheck(new RuleLevelHelper($broker, true, false, true, $this->checkExplicitMixed, $this->checkImplicitMixed, false), new NullsafeCheck(), new PhpVersion(80000), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
+			new FunctionCallParametersCheck(new RuleLevelHelper($broker, true, false, true, $this->checkExplicitMixed, $this->checkImplicitMixed, false), new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
 		);
 	}
 
@@ -477,6 +476,10 @@ public function testGenericFunction(): void
 
 	public function testNamedArguments(): void
 	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$errors = [
 			[
 				'Missing parameter $j (int) in call to function FunctionNamedArguments\foo.',
@@ -491,12 +494,6 @@ public function testNamedArguments(): void
 				14,
 			],
 		];
-		if (PHP_VERSION_ID < 80000) {
-			$errors[] = [
-				'Missing parameter $arr1 (array) in call to function array_merge.',
-				14,
-			];
-		}
 
 		require_once __DIR__ . '/data/named-arguments-define.php';
 		$this->analyse([__DIR__ . '/data/named-arguments.php'], $errors);
diff --git a/tests/PHPStan/Rules/Functions/CallUserFuncRuleTest.php b/tests/PHPStan/Rules/Functions/CallUserFuncRuleTest.php
index f4eb4c2c6e..ccff7cb19d 100644
--- a/tests/PHPStan/Rules/Functions/CallUserFuncRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/CallUserFuncRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\FunctionCallParametersCheck;
 use PHPStan\Rules\NullsafeCheck;
 use PHPStan\Rules\PhpDoc\UnresolvableTypeHelper;
@@ -21,7 +20,7 @@ class CallUserFuncRuleTest extends RuleTestCase
 	protected function getRule(): Rule
 	{
 		$reflectionProvider = $this->createReflectionProvider();
-		return new CallUserFuncRule($reflectionProvider, new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, true, false, false), new NullsafeCheck(), new PhpVersion(80000), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true));
+		return new CallUserFuncRule($reflectionProvider, new FunctionCallParametersCheck(new RuleLevelHelper($reflectionProvider, true, false, true, true, false, false), new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true));
 	}
 
 	public function testRule(): void
diff --git a/tests/PHPStan/Rules/Functions/ClosureAttributesRuleTest.php b/tests/PHPStan/Rules/Functions/ClosureAttributesRuleTest.php
index dbab699a2b..41cc608457 100644
--- a/tests/PHPStan/Rules/Functions/ClosureAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/ClosureAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Functions/FunctionAttributesRuleTest.php b/tests/PHPStan/Rules/Functions/FunctionAttributesRuleTest.php
index 6d028b1b96..1961e8e81c 100644
--- a/tests/PHPStan/Rules/Functions/FunctionAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/FunctionAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Functions/ParamAttributesRuleTest.php b/tests/PHPStan/Rules/Functions/ParamAttributesRuleTest.php
index 842d0513a1..678738ac50 100644
--- a/tests/PHPStan/Rules/Functions/ParamAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/ParamAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Functions;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -30,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
diff --git a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
index bd20b469b8..0da6911a43 100644
--- a/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
+++ b/tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Methods;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\FunctionCallParametersCheck;
 use PHPStan\Rules\NullsafeCheck;
 use PHPStan\Rules\PhpDoc\UnresolvableTypeHelper;
@@ -28,15 +27,13 @@ class CallMethodsRuleTest extends RuleTestCase
 
 	private bool $checkImplicitMixed = false;
 
-	private int $phpVersion = PHP_VERSION_ID;
-
 	protected function getRule(): Rule
 	{
 		$reflectionProvider = $this->createReflectionProvider();
 		$ruleLevelHelper = new RuleLevelHelper($reflectionProvider, $this->checkNullables, $this->checkThisOnly, $this->checkUnionTypes, $this->checkExplicitMixed, $this->checkImplicitMixed, false);
 		return new CallMethodsRule(
 			new MethodCallCheck($reflectionProvider, $ruleLevelHelper, true, true),
-			new FunctionCallParametersCheck($ruleLevelHelper, new NullsafeCheck(), new PhpVersion($this->phpVersion), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
+			new FunctionCallParametersCheck($ruleLevelHelper, new NullsafeCheck(), new UnresolvableTypeHelper(), new PropertyReflectionFinder(), true, true, true, true),
 		);
 	}
 
@@ -1822,12 +1819,29 @@ public function testDisallowNamedArguments(): void
 		]);
 	}
 
+	public function testDisallowNamedArgumentsInPhpVersionScope(): void
+	{
+		$this->checkThisOnly = false;
+		$this->checkNullables = true;
+		$this->checkUnionTypes = true;
+
+		$this->analyse([__DIR__ . '/data/disallow-named-arguments-php-version-scope.php'], [
+			[
+				'Named arguments are supported only on PHP 8.0 and later.',
+				26,
+			],
+		]);
+	}
+
 	public function testNamedArguments(): void
 	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->checkThisOnly = false;
 		$this->checkNullables = true;
 		$this->checkUnionTypes = true;
-		$this->phpVersion = 80000;
 
 		$this->analyse([__DIR__ . '/data/named-arguments.php'], [
 			[
@@ -2104,7 +2118,11 @@ public function testBug4800(): void
 		$this->checkThisOnly = false;
 		$this->checkNullables = true;
 		$this->checkUnionTypes = true;
-		$this->phpVersion = 80000;
+
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->analyse([__DIR__ . '/data/bug-4800.php'], [
 			[
 				'Missing parameter $bar (string) in call to method Bug4800\HelloWorld2::a().',
diff --git a/tests/PHPStan/Rules/Methods/CallStaticMethodsRuleTest.php b/tests/PHPStan/Rules/Methods/CallStaticMethodsRuleTest.php
index 80d61e299e..51210125cf 100644
--- a/tests/PHPStan/Rules/Methods/CallStaticMethodsRuleTest.php
+++ b/tests/PHPStan/Rules/Methods/CallStaticMethodsRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Methods;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
 use PHPStan\Rules\ClassNameCheck;
@@ -47,7 +46,6 @@ protected function getRule(): Rule
 			new FunctionCallParametersCheck(
 				$ruleLevelHelper,
 				new NullsafeCheck(),
-				new PhpVersion(80000),
 				new UnresolvableTypeHelper(),
 				new PropertyReflectionFinder(),
 				true,
@@ -414,6 +412,10 @@ public function testNamedArguments(): void
 	{
 		$this->checkThisOnly = false;
 
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0');
+		}
+
 		$this->analyse([__DIR__ . '/data/static-method-named-arguments.php'], [
 			[
 				'Missing parameter $j (int) in call to static method StaticMethodNamedArguments\Foo::doFoo().',
diff --git a/tests/PHPStan/Rules/Methods/MethodAttributesRuleTest.php b/tests/PHPStan/Rules/Methods/MethodAttributesRuleTest.php
index ef5ca25aef..c87aabde90 100644
--- a/tests/PHPStan/Rules/Methods/MethodAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Methods/MethodAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Methods;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -21,8 +20,6 @@
 class MethodAttributesRuleTest extends RuleTestCase
 {
 
-	private int $phpVersion;
-
 	protected function getRule(): Rule
 	{
 		$reflectionProvider = $this->createReflectionProvider();
@@ -32,7 +29,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion($this->phpVersion),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,
@@ -51,8 +47,6 @@ protected function getRule(): Rule
 
 	public function testRule(): void
 	{
-		$this->phpVersion = 80000;
-
 		$this->analyse([__DIR__ . '/data/method-attributes.php'], [
 			[
 				'Attribute class MethodAttributes\Foo does not have the method target.',
@@ -63,7 +57,6 @@ public function testRule(): void
 
 	public function testBug5898(): void
 	{
-		$this->phpVersion = 70400;
 		$this->analyse([__DIR__ . '/data/bug-5898.php'], []);
 	}
 
diff --git a/tests/PHPStan/Rules/Methods/data/disallow-named-arguments-php-version-scope.php b/tests/PHPStan/Rules/Methods/data/disallow-named-arguments-php-version-scope.php
new file mode 100644
index 0000000000..174fef244d
--- /dev/null
+++ b/tests/PHPStan/Rules/Methods/data/disallow-named-arguments-php-version-scope.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace DisallowNamedArgumentsInPhpVersionScope;
+
+if (PHP_VERSION_ID >= 80000) {
+	class Foo
+	{
+
+		public function doFoo(): void
+		{
+			$this->doBar(i: 1);
+		}
+
+		public function doBar(int $i): void
+		{
+
+		}
+
+	}
+} else {
+	class FooBar
+	{
+
+		public function doFoo(): void
+		{
+			$this->doBar(i: 1);
+		}
+
+		public function doBar(int $i): void
+		{
+
+		}
+
+	}
+}
diff --git a/tests/PHPStan/Rules/Properties/PropertyAttributesRuleTest.php b/tests/PHPStan/Rules/Properties/PropertyAttributesRuleTest.php
index 02b75d1007..6f4a6121ec 100644
--- a/tests/PHPStan/Rules/Properties/PropertyAttributesRuleTest.php
+++ b/tests/PHPStan/Rules/Properties/PropertyAttributesRuleTest.php
@@ -2,7 +2,6 @@
 
 namespace PHPStan\Rules\Properties;
 
-use PHPStan\Php\PhpVersion;
 use PHPStan\Rules\AttributesCheck;
 use PHPStan\Rules\ClassCaseSensitivityCheck;
 use PHPStan\Rules\ClassForbiddenNameCheck;
@@ -29,7 +28,6 @@ protected function getRule(): Rule
 				new FunctionCallParametersCheck(
 					new RuleLevelHelper($reflectionProvider, true, false, true, false, false, false),
 					new NullsafeCheck(),
-					new PhpVersion(80000),
 					new UnresolvableTypeHelper(),
 					new PropertyReflectionFinder(),
 					true,