PHPStan\Reflection\ClassReflection::getParentClassesNames PHP Method

    public function getParentClassesNames() : array
    {
        $parentNames = [];
        $currentClassReflection = $this;
        while ($currentClassReflection->getParentClass() !== false) {
            $parentNames[] = $currentClassReflection->getParentClass()->getName();
            $currentClassReflection = $currentClassReflection->getParentClass();
        }
        return $parentNames;
    }