diff --git a/src/Analyser/NodeScopeResolver.php b/src/Analyser/NodeScopeResolver.php
index e5977dabf4..6ba768e1e3 100644
--- a/src/Analyser/NodeScopeResolver.php
+++ b/src/Analyser/NodeScopeResolver.php
@@ -595,7 +595,7 @@ private function processStmtNode(
 			}
 
 			$isFromTrait = $stmt->getAttribute('originalTraitMethodName') === '__construct';
-			if ($stmt->name->toLowerString() === '__construct' || $isFromTrait) {
+			if ($isFromTrait || $stmt->name->toLowerString() === '__construct') {
 				foreach ($stmt->params as $param) {
 					if ($param->flags === 0) {
 						continue;
diff --git a/src/File/FileHelper.php b/src/File/FileHelper.php
index 33f4878cb4..06bca961f3 100644
--- a/src/File/FileHelper.php
+++ b/src/File/FileHelper.php
@@ -9,6 +9,7 @@
 use function ltrim;
 use function preg_match;
 use function rtrim;
+use function str_ends_with;
 use function str_replace;
 use function str_starts_with;
 use function strlen;
@@ -36,14 +37,13 @@ public function getWorkingDirectory(): string
 	public function absolutizePath(string $path): string
 	{
 		if (DIRECTORY_SEPARATOR === '/') {
-			if (substr($path, 0, 1) === '/') {
-				return $path;
-			}
-		} else {
-			if (substr($path, 1, 1) === ':') {
+			if (str_starts_with($path, '/')) {
 				return $path;
 			}
+		} elseif (substr($path, 1, 1) === ':') {
+			return $path;
 		}
+
 		if (preg_match('~^[a-z0-9+\-.]+://~i', $path) === 1) {
 			return $path;
 		}
@@ -87,12 +87,10 @@ public function normalizePath(string $originalPath, string $directorySeparator =
 				continue;
 			}
 			if ($pathPart === '..') {
-				/** @var string $removedPart */
 				$removedPart = array_pop($normalizedPathParts);
-				if ($scheme === 'phar' && substr($removedPart, -5) === '.phar') {
+				if ($scheme === 'phar' && $removedPart !== null && str_ends_with($removedPart, '.phar')) {
 					$scheme = null;
 				}
-
 			} else {
 				$normalizedPathParts[] = $pathPart;
 			}
diff --git a/src/File/FuzzyRelativePathHelper.php b/src/File/FuzzyRelativePathHelper.php
index 3654c10c08..dc2d44e505 100644
--- a/src/File/FuzzyRelativePathHelper.php
+++ b/src/File/FuzzyRelativePathHelper.php
@@ -40,7 +40,7 @@ public function __construct(
 		$pathBeginning = null;
 		$pathToTrimArray = null;
 		$trimBeginning = static function (string $path): array {
-			if (substr($path, 0, 1) === '/') {
+			if (str_starts_with($path, '/')) {
 				return [
 					'/',
 					substr($path, 1),
diff --git a/src/Reflection/BetterReflection/SourceLocator/PhpFileCleaner.php b/src/Reflection/BetterReflection/SourceLocator/PhpFileCleaner.php
index 278aa19b04..6e76066fee 100644
--- a/src/Reflection/BetterReflection/SourceLocator/PhpFileCleaner.php
+++ b/src/Reflection/BetterReflection/SourceLocator/PhpFileCleaner.php
@@ -233,7 +233,7 @@ private function skipComment(): void
 	private function skipToNewline(): void
 	{
 		while ($this->index < $this->len) {
-			if ($this->contents[$this->index] === "\r" || $this->contents[$this->index] === "\n") {
+			if (in_array($this->contents[$this->index], ["\r", "\n"], true)) {
 				return;
 			}
 			$this->index += 1;
diff --git a/src/Reflection/InitializerExprTypeResolver.php b/src/Reflection/InitializerExprTypeResolver.php
index 91e1205189..b8615874f2 100644
--- a/src/Reflection/InitializerExprTypeResolver.php
+++ b/src/Reflection/InitializerExprTypeResolver.php
@@ -790,7 +790,7 @@ public function getDivType(Expr $left, Expr $right, callable $getTypeCallback):
 						throw new ShouldNotHappenException();
 					}
 
-					if ($rightNumberType->getValue() === 0 || $rightNumberType->getValue() === 0.0) {
+					if (in_array($rightNumberType->getValue(), [0, 0.0], true)) {
 						return new ErrorType();
 					}
 
diff --git a/src/Type/IntersectionType.php b/src/Type/IntersectionType.php
index cdf572bdcf..fbec19866d 100644
--- a/src/Type/IntersectionType.php
+++ b/src/Type/IntersectionType.php
@@ -42,6 +42,7 @@
 use function ksort;
 use function md5;
 use function sprintf;
+use function str_starts_with;
 use function strlen;
 use function substr;
 
@@ -388,7 +389,7 @@ private function describeItself(VerbosityLevel $level, bool $skipAccessoryTypes)
 			}
 
 			if (
-				substr($typeDescription, 0, strlen('array<')) === 'array<'
+				str_starts_with($typeDescription, 'array<')
 				&& in_array('array', $skipTypeNames, true)
 			) {
 				$nonEmpty = false;
diff --git a/src/Type/ObjectType.php b/src/Type/ObjectType.php
index 5bed6a0ba8..6bba05fa01 100644
--- a/src/Type/ObjectType.php
+++ b/src/Type/ObjectType.php
@@ -375,12 +375,12 @@ public function isSuperTypeOf(Type $type): TrinaryLogic
 		}
 
 		$reflectionProvider = ReflectionProviderStaticAccessor::getInstance();
+		$thisClassReflection = $this->getClassReflection();
 
-		if ($this->getClassReflection() === null || !$reflectionProvider->hasClass($thatClassNames[0])) {
+		if ($thisClassReflection === null || !$reflectionProvider->hasClass($thatClassNames[0])) {
 			return self::$superTypes[$thisDescription][$description] = TrinaryLogic::createMaybe();
 		}
 
-		$thisClassReflection = $this->getClassReflection();
 		$thatClassReflection = $reflectionProvider->getClass($thatClassNames[0]);
 
 		if ($thisClassReflection->isTrait() || $thatClassReflection->isTrait()) {