PHP实现适配器

最新推荐文章于 2025-09-07 00:18:35 发布

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最新推荐文章于 2025-09-07 00:18:35 发布

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CC 4.0 BY-SA版权

文章标签： php 开发工具设计模式

原文链接：https://my.oschina.net/kakoi/blog/633191

本文介绍了PHP中的适配器模式，包括类适配器和对象适配器两种实现方式。通过具体示例展示了如何利用适配器模式解决不同类接口间的兼容性问题。

为什么80%的码农都做不了架构师？>>>

####PHP适配器模式 #####类适配器

类适配器设计模式使用继承
类适配器会被适配者继承功能,需要重新编写的代码较少

<?php
/**
 * Created by PhpStorm.
 * User: gewenrui
 * Date: 16/3/8
 * Time: 下午8:18
 */
//创建一个美元类
class DollarCalc{

    private $dollar;
    private $product;
    private $service;
    public  $rate = 1;
    public function requestCalc($productNow,$serviceNow){
        $this->product = $productNow;
        $this->service = $serviceNow;
        $this->dollar  = $this->product + $this->service;
        return $this->requestTotal();

    }
    public function requestTotal(){
        $this->dollar *= $this->rate;
        return $this->dollar;
    }
}
//创建一个欧元类
class EuroCalc{
    private $euro;
    private $product;
    private $service;
    public  $rate = 1;

    public function requestCalc($productNow,$serviceNow){

        $this->product = $productNow;
        $this->service = $serviceNow;
        $this->euro    = $this->product + $this->service;
        return $this->requestTotal();

    }
    public function requestTotal(){
        $this->euro *= $this->rate;
        return $this->euro;
    }
}
//类适配器的接口
interface ITarget{
    function requester();
}

//创建一个欧元适配器继承欧元类并实现接口
class EuroAdapter extends EuroCalc implements ITarget{

    public function __construct()
    {
        $this->requester();

    }
    //实现接口的方法
    public function requester()
    {
        $this->rate =.811;
        return $this->rate;
    }
}

class Client{
    private  $requestNow;
    private  $dollarRequest;
    public function __construct()
    {
        //创建一个欧元适配器
        $this->requestNow = new EuroAdapter();

        $this->dollarRequest = new DollarCalc();
        $euro = "1";
        //将对象传入适配器类 用接口类型来约束
        echo  "Euro:".$this->makeAdapterRequest($this->requestNow);

        echo  "Dollar".$this->makeDollarRequest($this->dollarRequest);
    }
    private  function makeAdapterRequest(ITarget $req){
        return $req->requestCalc(4,50);
    }
    private  function makeDollarRequest(DollarCalc $req){
       return  $req->requestCalc(40,50);
    }

}

$data = new Client();

#####对象适配器

在对象适配器模式中,适配器参与者使用适配者，并实现Target接口

<?php
/**
 * Created by PhpStorm.
 * User: gewenrui
 * Date: 16/3/9
 * Time: 上午7:30
 */

interface  IFormat{
    public function formatCss();

}

class Desktop implements IFormat{

    public function formatCss()
    {
        // TODO: Implement formatCss() method.
    }

}

interface IMobileFormat{
    public function formatCss();
}
//mobile实现这个接口
class Mobile implements IMobileFormat{
    public function formatCss()
    {
        echo "this is mobile";
    }
}

//创建一个Mobile实现这个接口
class MobileAdapter implements IFormat{
    private $mobile;
    public function __construct(IMobileFormat $mobileNow)
    {
        $this->mobile = $mobileNow;
    }

    public function formatCss()
    {
        $this->mobile->formatCss();
    }
}

class Client{
    private $mobile;
    private $mobileAdapter;
    public function  __construct()
    {
        $this->mobile = new Mobile();
        $this->mobileAdapter = new MobileAdapter($this->mobile);
        $this->mobileAdapter->formatCss();
    }
}

$data = new Client();

转载于:https://my.oschina.net/kakoi/blog/633191