Head First Design Model 코드의 PHP 버전(객체 학습) 1/2페이지

책 속의 예는 모두 비교적 간단명료하고 이해하기 쉽지만 외국 사람이 쓴 것이기 때문에 예의 습관은 중국 특색에 부합되지 않고 가끔 어색해 보일 수도 있고 언어 습관도 중국풍이 아니다.물론 이 책을 본 후에야 디자인 모델이 도대체 당신을 위해 어떤 문제를 해결할 수 있는지, 당신을 위해 어떤 문제를 해결할 수 있는지 깊이 이해할 수 있다. (예를 들어 당신의 인코딩을 대체할 수 없다.)나는 책의 일부 코드를 PHP로 바꾸었는데, 코드를 보고 나서 개념을 맞추는 것은 비교적 이해하기 쉬울 것이다.전략 모드

 
<?php 
/** 
*   
*  ， ， ， 
*  。 
*/ 
//  
interface FlyBehavior { 
public function fly(); 
} 
//  
interface QuackBehavior { 
public function quack(); 
} 
//  
class FlyWithWings implements FlyBehavior { 
public function fly() { 
echo "I'm flying!!
"; 
} 
} 
//  
class FlyNoWay implements FlyBehavior { 
public function fly() { 
echo "I can't fly!
"; 
} 
} 
class FlyRocketPowered implements FlyBehavior { 
public function fly() { 
echo "I'm flying with a rocket!
"; 
} 
} 
class Qquack implements QuackBehavior { 
public function quack() { 
echo "Quack
"; 
} 
} 
class Squeak implements QuackBehavior { 
public function quack() { 
echo "Squeak
"; 
} 
} 
class MuteQuack implements QuackBehavior { 
public function quack() { 
echo "<< Silence >>
"; 
} 
} 
abstract class Duck { 
protected $quack_obj; 
protected $fly_obj; 
public abstract function display(); 

public function performQuack() { 
$this->quack_obj->quack(); 
} 
public function performFly() { 
$this->fly_obj->fly(); 
} 
public function swim() { 
echo "All ducks float, even decoys!
"; 
} 
public function setFlyBehavior(FlyBehavior $fb) { 
$this->fly_obj = $fb; 
} 
public function setQuackBehavior(QuackBehavior $qb) { 
$this->quack_obj = $qb; 
} 
} 

class ModelDuck extends Duck { 
public function __construct() { 
$this->fly_obj = new FlyNoWay(); 
$this->quack_obj = new MuteQuack(); 
} 
public function display() { 
echo "I'm a model duck!
"; 
} 
} 

$model = new ModelDuck(); 
$model->performFly(); 
$model->performQuack(); 
//  
$model->setFlyBehavior(new FlyRocketPowered()); 
$model->setQuackBehavior(new Squeak()); 
$model->performFly(); 
$model->performQuack(); 

?> 

단일 모드

 
<?php 
/** 
*   
*  ， 。 
*/ 
class MyClass { 
private static $uniqueInstance; 
private function __construct() { 

} 
public static function getInstance() { 
if (self::$uniqueInstance == null) { 
self::$uniqueInstance = new MyClass(); 
} 
return self::$uniqueInstance; 
} 
} 
$myClass = MyClass::getInstance(); 
var_dump($myClass); 
$myClass = MyClass::getInstance(); 
var_dump($myClass); 
?> 

공장 방법 모델

 
<?php 
abstract class PizzaStore { 
public function orderPizza($type) { 
$pizza = $this->createPizza($type); 

$pizza->prepare(); 
$pizza->bake(); 
$pizza->cut(); 
$pizza->box(); 
return $pizza; 
} 

public abstract function createPizza($type); 
} 
class NYPizzaStore extends PizzaStore { 
public function createPizza($type) { 
if ($type == "cheese") { 
return new NYStyleCheesePizza(); 
} elseif ($type == "veggie") { 
return new NYStyleVeggiePizza(); 
} elseif ($type == "clam") { 
return new NYStyleClamPizza(); 
} elseif ($type == "papperoni") { 
return new NYStylePapperoniPizza(); 
} else { 
return null; 

} 
} 
} 
class ChicagoPizzaStore extends PizzaStore { 
public function createPizza($type) { 
if ($type == "cheese") { 
return new ChicagoStyleCheesePizza(); 
} elseif ($type == "veggie") { 
return new ChicagoStyleVeggiePizza(); 
} elseif ($type == "clam") { 
return new ChicagoStyleClamPizza(); 
} elseif ($type == "papperoni") { 
return new ChicagoStylePapperoniPizza(); 
} else { 
return null; 
} 
} 
} 
abstract class Pizza { 
public $name; 
public $dough; 
public $sauce; 
public $toppings = array(); 

public function prepare() { 
echo "Preparing " . $this->name . "
"; 
echo "Yossing dough...
"; 
echo "Adding sauce...
"; 
echo "Adding toppings: 
"; 
for ($i = 0; $i < count($this->toppings); $i++) { 
echo " " . $this->toppings[$i] . "
"; 
} 
} 

public function bake() { 
echo "Bake for 25 minutes at 350
"; 
} 

public function cut() { 
echo "Cutting the pizza into diagonal slices
"; 
} 

public function box() { 
echo "Place pizza in official PizzaStore box
"; 
} 

public function getName() { 
return $this->name; 
} 
} 

class NYStyleCheesePizza extends Pizza { 
public function __construct() { 
$this->name = "NY Style Sauce and cheese Pizza"; 
$this->dough = "Thin Crust Dough"; 
$this->sauce = "Marinara Sauce"; 

$this->toppings[] = "Grated Reggiano Cheese"; 
} 
} 

class NYStyleVeggiePizza extends Pizza { 
public function __construct() { 
$this->name = "NY Style Sauce and veggie Pizza"; 
$this->dough = "Thin Crust Dough"; 
$this->sauce = "Marinara Sauce"; 

$this->toppings[] = "Grated Reggiano veggie"; 
} 
} 
class NYStyleClamPizza extends Pizza { 
public function __construct() { 
$this->name = "NY Style Sauce and clam Pizza"; 
$this->dough = "Thin Crust Dough"; 
$this->sauce = "Marinara Sauce"; 

$this->toppings[] = "Grated Reggiano clam"; 
} 
} 
class NYStylePapperoniPizza extends Pizza { 
public function __construct() { 
$this->name = "NY Style Sauce and papperoni Pizza"; 
$this->dough = "Thin Crust Dough"; 
$this->sauce = "Marinara Sauce"; 

$this->toppings[] = "Grated Reggiano papperoni"; 
} 
} 

class ChicagoStyleCheesePizza extends Pizza { 
public function __construct() { 
$this->name = "Chicago Style Deep Dish Cheese Pizza"; 
$this->dough = "Extra Thick Crust Dough"; 
$this->sauce = "Plum Tomato Sauce"; 

$this->toppings[] = "Shredded Mozzarella Cheese"; 
} 

public function cut() { 
echo "Cutting the pizza into square slices
"; 
} 
} 

$myStore = new NYPizzaStore(); 
$chicagoStore = new ChicagoPizzaStore(); 
$pizza = $myStore->orderPizza("cheese"); 
echo "Ethan ordered a " . $pizza->getName() . "
"; 

$pizza = $chicagoStore->orderPizza("cheese"); 
echo "Ethan ordered a " . $pizza->getName() . "
"; 

?> 

공장 모델

 
<?php 
abstract class PizzaStore { 
public function orderPizza($type) { 
$pizza = $this->createPizza($type); 

$pizza->prepare(); 
$pizza->bake(); 
$pizza->cut(); 
$pizza->box(); 
return $pizza; 
} 

public abstract function createPizza($type); 
} 
class NYPizzaStore extends PizzaStore { 
public function createPizza($type) { 
$pizza = null; 
$ingredientFactory = new NYPizzaIngredientFactory(); 
if ($type == "cheese") { 
$pizza = new CheesePizza($ingredientFactory); 
$pizza->setName('New York Style Cheese Pizza'); 
} elseif ($type == "veggie") { 
$pizza = new VeggiePizza($ingredientFactory); 
$pizza->setName('New York Style Veggie Pizza'); 
} elseif ($type == "clam") { 
$pizza = new ClamPizza($ingredientFactory); 
$pizza->setName('New York Style Clam Pizza'); 
} elseif ($type == "papperoni") { 
$pizza = new PapperoniPizza($ingredientFactory); 
$pizza->setName('New York Style Papperoni Pizza'); 
} 
return $pizza; 
} 
} 
class ChicagoPizzaStore extends PizzaStore { 
public function createPizza($type) { 
if ($type == "cheese") { 
return new ChicagoStyleCheesePizza(); 
} elseif ($type == "veggie") { 
return new ChicagoStyleVeggiePizza(); 
} elseif ($type == "clam") { 
return new ChicagoStyleClamPizza(); 
} elseif ($type == "papperoni") { 
return new ChicagoStylePapperoniPizza(); 
} else { 
return null; 
} 
} 
} 
interface PizzaIngredientFactory { 
public function createDough(); 
public function createSauce(); 
public function createCheese(); 
public function createVeggies(); 
public function createPepperoni(); 
public function createClam(); 
} 
class NYPizzaIngredientFactory implements PizzaIngredientFactory { 
public function createDough() { 
return new ThinCrustDough(); 
} 
public function createSauce() { 
return new MarinaraSauce(); 
} 
public function createCheese() { 
return new ReggianoCheese(); 
} 
public function createVeggies() { 
$veggies = array( 
new Garlic(), 
new Onion(), 
new Mushroom(), 
new RedPepper(), 
); 
return $veggies; 
} 
public function createPepperoni() { 
return new SlicedPepperoni(); 
} 
public function createClam() { 
return new FreshClams(); 
} 
} 
class ChicagoPizzaIngredientFactory implements PizzaIngredientFactory { 
public function createDough() { 
return new ThickCrustDough(); 
} 
public function createSauce() { 
return new PlumTomatoSauce(); 
} 
public function createCheese() { 
return new Mozzarella(); 
} 
public function createVeggies() { 
$veggies = array( 
new BlackOlives(), 
new Spinach(), 
new EggPlant(), 
); 
return $veggies; 
} 
public function createPepperoni() { 
return new SlicedPepperoni(); 
} 
public function createClam() { 
return new FrozenClams(); 
} 
} 
abstract class Pizza { 
public $name; 
public $dough; 
public $sauce; 
public $veggies = array(); 
public $cheese; 
public $pepperoni; 
public $clam; 

public abstract function prepare(); 

public function bake() { 
echo "Bake for 25 minutes at 350
"; 
} 

public function cut() { 
echo "Cutting the pizza into diagonal slices
"; 
} 

public function box() { 
echo "Place pizza in official PizzaStore box
"; 
} 

public function getName() { 
return $this->name; 
} 

public function setName($name) { 
$this->name = $name; 
} 

public function __toString() { 

} 
} 

class CheesePizza extends Pizza { 
public $ingredientFactory; 

public function __construct(PizzaIngredientFactory $ingredientFactory) { 
$this->ingredientFactory = $ingredientFactory; 
} 

public function prepare() { 
echo "Preparing " . $this->name . "
"; 
$this->dough = $this->ingredientFactory->createDough(); 
$this->sauce = $this->ingredientFactory->createSauce(); 
$this->cheese = $this->ingredientFactory->createCheese(); 
} 
} 

class ClamPizza extends Pizza { 
public $ingredientFactory; 

public function __construct(PizzaIngredientFactory $ingredientFactory) { 
$this->ingredientFactory = $ingredientFactory; 
} 

public function prepare() { 
echo "Preparing " . $this->name . "
"; 
$this->dough = $this->ingredientFactory->createDough(); 
$this->sauce = $this->ingredientFactory->createSauce(); 
$this->cheese = $this->ingredientFactory->createCheese(); 
$clam = $this->ingredientFactory->createClam(); 
} 
} 

$nyPizzaStore = new NYPizzaStore(); 
$nyPizzaStore->orderPizza('cheese'); 
?> 

일이 다음 페이지 전문을 읽다