代码
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| <?php
header("Content-type: text/html; charset=utf-8");
date_default_timezone_set('PRC');
interface ITicketObserver //观察者接口 { function onBuyTicketOver($sender, $args); }
interface ITicketObservable //被观察对象接口 { function addObserver($observer); }
class HipiaoBuy implements ITicketObservable { private $_observers = array (); public function buyTicket($ticket) //购票核心类,处理购票流程 { foreach ( $this->_observers as $obs ) $obs->onBuyTicketOver ( $this, $ticket ); } public function addObserver($observer) //添加N个通知 { $this->_observers [] = $observer; } }
class HipiaoMSM implements ITicketObserver { public function onBuyTicketOver($sender, $ticket) { echo date( 'Y-m-d H:i:s' ),"短信日志记录:购票成功:$ticket<br>"; } }
class HipiaoTxt implements ITicketObserver { public function onBuyTicketOver($sender, $ticket) { echo date('Y-m-d H:i:s'),"文本日志记录:购票成功:$ticket<br>"; } }
class HipiaoDiKou implements ITicketObserver { public function onBuyTicketOver($sender, $ticket) { echo date('Y-m-d H:i:s'),"赠送抵扣卷:购票成功:$ticket 赠送10元抵扣卷1张<br>"; } }
$buy = new HipiaoBuy ();
$buy->addObserver( new HipiaoMSM() ); $buy->addObserver( new HipiaoTxt() ); $buy->addObserver( new HipiaoDiKou() );
$buy->buyTicket("一排一号");
|
远行结果:
2017-02-10 10:50:51短信日志记录:购票成功:一排一号
2017-02-10 10:50:51文本日志记录:购票成功:一排一号
2017-02-10 10:50:51赠送抵扣卷:购票成功:一排一号 赠送10元抵扣卷1张
结尾
原文链接:https://www.cnblogs.com/liliuguang/p/13364892.html