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天蓬老师Correction status：qualified
Teacher's comments：mvc是现代所有框架的基础, 目前 流行的几乎都是它的扩展
Collection
Collection
composer require catfan/medoocomposer require league/plates目录图片：
组件的具体使用查看组件的介绍文档，以下部分是core目录的代码：
Controller.php
<?phpnamespace core;use core\View;// 自定义核心控制器abstract class Controller{// 每一个控制器都需要调用到视图组件,实例化存储到属性view中protected $view = '';// 构造函数，进行视图类的实例赋值到属性viewpublic function __construct(){$this->view = new View('app/views');}}
Model.php
<?php// 模型类namespace core;// 模型类继承自 组件Medoouse Medoo\Medoo;abstract class Model extends Medoo{public function __construct(){$optinos = ['database_type' => 'mysql','database_name' => 'phpedu','server' => 'localhost','username' => 'root','password' => 'root',];parent::__construct($optinos);}}
View.php
<?php// 视图类namespace core;// 视图类继承自 plates组件use League\Plates\Engine;class View extends Engine{ public $templates = null;public function __construct($path){$this->templates = parent::__construct($path);}}
以下是app目录用户应用：controllers/UsersController.php
<?phpnamespace controllers;use core\Controller;use models\UsersModel;// 继承核心controllerclass UsersController extends Controller{public function __construct(){// 可以不写，但最好调用一下父类的构造方法parent::__construct();}// 首页展示方法public function index(){$model = new UsersModel();$users = $model ->select('users',['id','name','email'],['id[>]'=>20,'LIMIT'=>5]);return $this->view->render('users/list',['users'=>$users]);}// 删除数据方法public function delete(){$id = $_GET['id'];$model = new UsersModel();$result = $model->delete("users", ["id" => $id]);// return __METHOD__;return $result->rowCount();;}// 展示修改页面public function edit(){$id = $_GET['id'];$model = new UsersModel();$user = $model->get("users", ['id','name','email'], ["id" => $id]);return $this->view->render('users/edit',['user'=>$user]);// return print_r($_GET,true);}// 更新数据方法public function update(){$id = $_GET['id'];$model = new UsersModel();$data = $model->update("users", ["name" => $_POST['name'],"email" =>$_POST['email']], ["id" => $id]);return $data->rowCount();// return print_r($_POST,true);}}
models/UsersModel.php
<?phpnamespace models;use core\Model;// 继承核心的Modelclass UsersModel extends Model{public function __construct(){parent::__construct();}// 自行创建model组件中没有的方法/定制式的方法public function idGetDate(){return '自定义模型数据处理';}}
Views文件夹主要存放的是视图文件，查看组件文档有几点重点：
users/list.php
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>用户信息</title><style>body {display: flex;flex-direction: column;align-items: center;}table {border-collapse: collapse;border: 1px solid;width: 50%;text-align: center;}th,td {border: 1px solid;padding: 5px;}tr:first-child {background-color: #eee;}</style></head><body><h3>用户管理系统</h3><table><tr><th>id</th><th>姓名</th><th>邮箱</th><th>操作</th></tr><?php foreach ($users as $user): ?><tr><!-- $this->e:模板引擎Plates中的一个函数,用来过滤特殊字符 --><td><?=$user['id']?></td><td><?=$this->e($user['name'])?></td><td><?=$this->e($user['email'])?></td><td><button onclick="location.href='/mvc/index.php/users/edit.html?id=<?=$user['id']?>'" >编辑</button><button onclick="del(<?=$user['id']?>)">删除</button></td></tr><?php endforeach ?></table><p><a href="">假分页</a><a href="">1</a><a href="">2</a><a href="">3</a><a href="">4</a></p></body><script>function del(id){let url = '/mvc/index.php/users/delete.html?id='+id;return confirm('是否删除?') ?location.href=url : false;}</script></html>
users/edit.php
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>用户编辑页</title></head><body><form action="/mvc/index.php/users/update.html?id=<?=$this->e($user['id'])?>" method="POST" ><fieldset><legend>用户编辑</legend><p><label for="">用户名：</label><input type="text" name="name" id="name" value="<?=$this->e($user['name'])?>" ></p><p><label for="">邮箱：</label><input type="email" name="email" id="email" value="<?=$this->e($user['email'])?>"></p><p><button>保存</button></p></fieldset></form></body></html>
创建入口文件index.php
<?php//加载composer的自动加载文件require __DIR__ . '/vendor/autoload.php';// 路由访问拦截$pathinfo = array_values(array_filter(explode('/', str_replace('.html','',$_SERVER['PATH_INFO']))));// 如果要用路由拦截访问，不能使用USE进行文件别名，$controller = '\\controllers\\' . ucfirst(array_shift($pathinfo)) . 'Controller';$action = array_shift($pathinfo);// 测试// echo $controller.'-'.$action;// printf('<pre>%s</pre>', print_r($pathinfo, true));$params = [];// 每次处理的是二个元素,所以$i = $i + 2for ($i=0; $i < count($pathinfo); $i+=2) {// $pathinfo中前一个元素是新数组中的键名, 后面一个是它的值if (isset($pathinfo[$i + 1])) {$params[$pathinfo[$i]] = $pathinfo[$i + 1];}}echo call_user_func_array([(new $controller), $action], $params );
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