SOLID - InterfaceSegregationPrinciple PHP

InterfaceSegregationPrinciple.php

<?php
interface VehicleInterface {
    public function drive();
    public function fly();
}
class FutureCar implements VehicleInterface {
    public function drive() {
        echo 'Driving a future car!';
    }
    public function fly() {
        echo 'Flying a future car!';
    }
}
class Car implements VehicleInterface {
    public function drive() {
        echo 'Driving a car!';
    }
    public function fly() {
        throw new Exception('Not implemented method');
    }
}
class Airplane implements VehicleInterface {
      public function drive() {
        throw new Exception('Not implemented method');
    }
    
    public function fly() {
        echo 'Flying an airplane!';
    }
}

interface CarInterface {
    public function drive();
}

interface AirplaneInterface {
    public function fly();
}

class FutureCar implements CarInterface, AirplaneInterface {
    
    public function drive() {
        echo 'Driving a future car!';
    }
  
    public function fly() {
        echo 'Flying a future car!';
    }
}

class Car implements CarInterface {
    
    public function drive() {
        echo 'Driving a car!';
    }
}

class Airplane implements AirplaneInterface {
    
    public function fly() {
        echo 'Flying an airplane!';
    }
}

?>