实例
<?php /** * @Description: 桥接模式 * @Author: luoxiaojin * @Date: 2020-06-30 10:06:41 * @LastEditors: luoxiaojin * @LastEditTime: 2020-06-30 11:00:04 * @FilePath: \design_patterns\l10.php */ // 论坛发送站内信 abstract class Msg{ // 发送方式 protected $send = null; // 发送内容 protected $text = ''; public function content(){ // } public function send(){ // } } // 发送方式 class EmailMsg extends Msg{ public function __construct($to,$text){ $this->text = $to.$text; } public function content(){ return 'Email:'.$this->text; } } class SmsMsg extends Msg{ public function __construct($to,$text){ $this->text = $to.$text; } public function content(){ return '短信:'.$this->text; } } // 紧急程度 class CommonSend extends Msg{ public function __construct(Msg $obj){ $this->text = $obj->content(); } public function send(){ return "{$this->text},普通信息!"; } } class UrgentSend extends Msg{ public function __construct(Msg $obj){ $this->text = $obj->content(); } public function send(){ return "{$this->text},紧急通知!"; } } // 耦合调用 $commonEmailMsg = new CommonSend(new EmailMsg('小明','吃饭了!')); echo $commonEmailMsg->send(); $urgentSmsMsg = new UrgentSend(new SmsMsg('小红','家里失火了!')); echo $urgentSmsMsg->send();
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