php实现最简单的MVC框架实例教程_PHP
本文以一个实例的形式讲述了PHP实现MVC框架的过程,比较浅显易懂。现分享给大家供大家参考之用。具体分析如下:
首先,在学习一个框架之前,基本上我们都需要知道什么是mvc,即model-view-control,说白了就是数据控制以及页面的分离实现,mvc就是这样应运而生的,mvc分为了三个层次,而且三个层次各司其职,互不干扰,首先简单介绍下,各个层次:view即是视图,也就是web页面,control即是控制器 向系统发出指令的工具,model 简单说是从数据库中取出数据进行处理。
MVC的工作流程如下:
1. 浏览者->调用控制器,对此发出指令
2. 控制器->按指令选取一个合适的模型
3. 模型->按照控制器指令选取相应的数据
4. 控制器->按指令选取相应的视图
5. 视图->把第三步取到的数据按用户想要的样子显示出来
简单地实例开发如下,首先进行第一个控制器的开发 我们在此命名规范如下testController.class.php
<?php class testController{ function show(){ } } ?>
其次书写一个简单地模型如下testModel.class.php
<?php class testModel{ function get(){ return "hello world"; } } ?>
第一个视图文件的创建testView.class.php 是为了呈现数据所存在的
<?php class testVies{ function display($data){ echo $data; } } ?>
下面我们要做的就是按照之前所说的五步进行程序的测试:代码如下 测试文件的建立test.php
<?php require_once('testController.class.php'); require_once('testModel.class.php'); require_once('testView.class.php'); $testController = new testController();//调用控制器 $testController->show(); ?>
<?php class testController{ function show(){ $testModel = new testModel();//选取合适的模型 $data = $testModel->get();//获取相应的数据 $testView = new testView();//选择相应的视图 $testView->display($data);//展示给用户 } } ?>
而后我们浏览器打开test.php 会显示为hello world,说明我们已经成功了。
注:本文实例仅为框架结构,具体的功能读者可以自行添加。希望本文所述实例对大家PHP程序设计框架的学习有所帮助。

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