大话设计模式第十七章--适配器模式

<?php
abstract class Target {
    abstract public function request();
}

class Normal extends Target {
    public function request() {
        echo "NORMAL REQUEST";
    }
}

class Adaptee {
    public function special_request() {
        echo "SPECIAL REQUEST";
    }
}

class Adapter extends Target {
    private $_adaptee;
    public function __construct() {
        $this->_adaptee = new Adaptee();
    }
    public function request() {
        $this->_adaptee->special_request();
    }
}

$target = new Adapter();
$target->request();