PHP之简略实现MVC框架
PHP之简单实现MVC框架
1.概述
MVC全名是Model View Controller，是模型(model)－视图(view)－控制器(controller)的缩写，一种软件设计典范，用一种业务逻辑、数据、界面显示分离的方法组织代码，将业务逻辑聚集到一个部件里面，在改进和个性化定制界面及用户交互的同时，不需要重新编写业务逻辑。MVC被独特的发展起来用于映射传统的输入、处理和输出功能在一个逻辑的图形化用户界面的结构中。
2.代码结构
3.代码实现
<?php //function.php //控制器调用函数 function C($name, $method){ require_once('libs/Controller/'.$name.'Controller.class.php'); //$testController = new testController(); //$testController->show(); eval('$obj = new '.$name.'Controller(); $obj->'.$method.'();'); } //模型调用函数 function M($name){ require_once('libs/Model/'.$name.'Model.class.php'); eval('$obj = new '.$name.'Model();'); return $obj; } //视图调用函数 function V($name){ require_once('libs/View/'.$name.'View.class.php'); eval('$obj = new '.$name.'View();'); return $obj; } //过滤非法值 function daddslashes($str){ return (!get_magic_quotes_gpc())?addslashes($str):$str; }?>
<?php//test.php/*第一步 浏览者 -> 调用控制器,对它发出指令第二步 控制器 -> 按指令选取一个合适的模型第三步 模型 -> 按控制器指令取相应数据第四步 控制器 -> 按指令选取相应视图第五步 视图 -> 把第三步取到的数据按用户想要的样子显示出来*/require_once('View/testView.class.php');require_once('Model/testModel.class.php');require_once('Controller/testController.class.php');$testController = new testController();$testController->show();?>
<?php//testController.class.php/*控制器的作用是调用模型,并调用视图,将模型产生的数据传递给视图,并让相关视图去显示*/ class testController{ function show(){ /*$testModel = new testModel(); $data = $testModel->get(); $testView = new testView(); $testView->display($data);*/ $testModel = M('test'); $data = $testModel->get(); $testView = V('test'); $testView->display($data); } }?>
<?php//testModel.class.php/*模型的作用是获取数据并处理,返回数据*/ class testModel{ function get(){ return "hello world"; } }?>
<?php//testView.class.php/*视图的作用是将获得的数据进行组织,美化等,并最终向用户终端输出*/ class testView{ function display($data){ echo $data; } }?>运行结果:
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