设计模式2（装饰模式，代理模式）

<?php
/**
 装饰模式 
**/
class Person {
    function __construct($name) {
        $this->name = $name;
    }
    function show() {
    }
    function showStyle() {
        $this->dis .= "$this->name style";
         echo $this->dis;
    }
}

abstract class Finery {
    protected $person;
    public function decorate($person) {
        $this->person = $person;
    }
    function show() {
        if($this->person) {
            $this->person->show();
        }
    }
}

class TShirts extends Finery {
    function show() {
        $this->person->dis .= 'T-Shirt';
        parent::show();
    }
}

class BigTrouser extends Finery {
    function show() {
        $this->person->dis .= 'Big trouser';
        parent::show();
    }
}

$jam = new Person('jam');
$tshirt = new TShirts();
$bigTrouser = new BigTrouser();
$bigTrouser->decorate($jam);
$tshirt->decorate($jam);
$tshirt->show();
$bigTrouser->show();
$jam->showStyle();


<?php
/**
  proxy  
**/

interface IAction {
    function givePen();
    function giveCloth(); 
}

class Pursuer implements IAction {
    private $schoolGril;
    function __construct($girl) {
        $this->schoolGril = $girl;
    }
    function givePen() {
        echo '送笔给'. $this->schoolGril->name;
    }

    function giveCloth() {
        echo '送衣服'. $this->schoolGril->name;
    }
}

class Proxy implements IAction {
    private $pursuer;

    function __construct(SchoolGirl $girl) {
        $this->pursuer = new Pursuer($girl);
    }
    function givePen() {
        $this->pursuer->givePen();
    }
    function giveCloth() {
        $this->pursuer->giveCloth();
    }
}
class SchoolGirl {
    public $name;
    function __construct($name) {
        $this->name = $name;    
    }
}


$gril = new SchoolGirl('MM');
$proxy = new Proxy($gril);
$proxy->givePen();
$proxy->giveCloth();