<?php header("Content-type:text/html;charset=utf-8"); abstract class msg{ protected $send = null; public function __construct($send){ $this->send = $send; } abstract function msg($content); function send($to, $content){ $content = $this->msg($content); $this->send->send($to, $content); } } /** * 普通信 */ class ZnMsg { public function send($to, $content) { echo "给".$to."发送站内信：<br>".$content; } } /** * email信 */ class EmailMsg { public function send($to, $content) { echo "给".$to."发送Email：<br>".$content; } } /** * sms信 */ class SmsMsg { public function send($to, $content) { echo "给".$to."发送短信：<br>".$content; } } // 内容分为普通，加急，，特急三种水平 /** * 普通 */ class CommonInfo extends msg { public function msg($content) { return "普通：".$content."<br>"; } } /** * 加急 */ class WarnInfo extends msg { public function msg($content) { return "加急：".$content."<br>"; } } /** * 特急 */ class DangerInfo extends msg { public function msg($content) { return "特急：".$content."<br>"; } } $DangerInfo = new DangerInfo(new EmailMsg()); $DangerInfo->send(‘小小‘,‘不要再去参与极限运动了‘); $WarnInfo = new WarnInfo(new EmailMsg()); $WarnInfo->send(‘毛毛‘,‘顿时过来办公室开会！‘);

php设计模式之桥接模式实例代码