1. 适配器模式

将一个类的接口转换成客户希望的另外一个接口。Adapter模式使得原本由于接口不兼容而不能一起工作的那些类可以一起工作

2. 实列

class Message {
    public function send() {
        echo "ali发送短信" . PHP_EOL;
    }
    public function push(){
        echo "ali发送推送" . PHP_EOL;
    }
}

class JiguangSDKAdapter extends Message{
    private $message;

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

    public function send(){
        $this->message->send_out_msg();
    }
    public function push(){
        $this->message->push_msg();
    }
}

class JiguangMessage{
    public function send_out_msg(){
        echo "极光发送短信！" . PHP_EOL;
    }
    public function push_msg(){
        echo "极光发送推送！" . PHP_EOL;
    }
}
class BaiduYunSDKAdapter extends Message{
    private $message;

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

    public function send(){
        $this->message->transmission_msg();
    }
    public function push(){
        $this->message->transmission_push();
    }
}
class BaiduYunMessage{
    public function transmission_msg(){
        echo "百度云发送短信！" . PHP_EOL;
    }
    public function transmission_push(){
        echo "百度云发送推送！" . PHP_EOL;
    }
}

$jiguangMessage = new JiguangMessage();
$baiduYunMessage = new BaiduYunMessage();
$message = new Message();

// 原来的老系统发短信，使用阿里云
$message->send();
$message->push();


// 部分模块用极光发吧
$jgAdatper = new JiguangSDKAdapter($jiguangMessage);
$jgAdatper->send();
$jgAdatper->push();

// 部分模块用百度云发吧
$bdAatper = new BaiduYunSDKAdapter($baiduYunMessage);
$bdAatper->send();
$bdAatper->push();

3. 使用场景

1. laravel 文件系统模块 FilesystemAdapter 类，使用的适配器模式

php 设计模式之 适配器模式