一．面向对象的总结：
1.高度抽象有利于高度总结。
2.代码即文档。
二．以面向对象思想做的留言本实例：
message.php
<?php/* * 留言实体类 */class message{ public $name; public $email; public $content; public function __set($name,$value){ $this->$name = $value; } public function __get($name){ if (!isset($this->$name)){ $this->$name = null; } }}
gbookModel.php
<?php/* * 留言本模型 */class gbookModel{ private $bookPath; private $data; public function setBookPath($bookPath){ $this->bookPath = $bookPath; } public function getBookPath(){ return $this->bookPath; } public function open(){ } public function close(){ } public function read(){ return file_get_contents($this->bookPath); } //写入留言 public function write($data){ $this->data= self::safe($data)->name."&".self::safe($data)->email."\r\nsaild:\r\n".self::safe($data)->content; return file_put_contents($this->bookPath,$this->data,FILE_APPEND); } public static function safe($data){ $reflect = new ReflectionObject($data); $props = $reflect->getProperties(); $messagebox = new stdClass(); foreach($props as $prop){ $ivar = $prop -> getName(); $messagebox ->$ivar= trim($prop->getValue($data)); } return $messagebox; } public function delete(){ file_put_contents($this->bookPath,'it\'s empty now'); }}
leaveModel.php
<?php//业务逻辑class leaveModel{ public function write(gbookModel $gb,$data){ $book = $gb->getBookPath(); $gb->write($data); }}
view.php
<?phpinclude "gbookModel.php";include "leaveModel.php";include "message.php";class authorControl{ public function message(leaveModel $l,gbookModel $g,message $data){ $l->write($g,$data); } public function view(gbookModel $g){ return $g->read(); } public function delete(gbookModel $g){ $g->delete(); echo self::view($g); }}//以下是测试$message = new message();$message->name = 'phper';$message->email = '[email protected]';$message->content = 'love php';$gb = new authorContr6来源gaodaimacom搞#^代%!码网搞gaodaima代码ol();$pen = new leaveModel();$book = new gbookModel();$book->setBookPath('test.txt');$gb->message($pen,$book,$message);echo $gb->view($book);$gb->delete($book);
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以上就介绍了（九）面向对象的设计原则之五，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
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转载请注明原文链接：（九）面向对象的设计原则之五
转载请注明原文链接：（九）面向对象的设计原则之五
