PHP视图控制器MVC基本认识

模型类：model.php

<?php
class Model
{
    public function getData()
    {
        require $_SERVER['DOCUMENT_ROOT'].'/config/connect.php';
        $sql="SELECT * FROM `user` LIMIT 10";
       $stmt = $pdo->prepare($sql);
       $stmt->execute();
        $user = $stmt->fetchAll(PDO::FETCH_ASSOC);
        return $user;
//        print_r($users);
    }
}
?>
<html>
<head>
    <body>
<style>
    table {border-collapse: collapse; border: 1px solid;text-align: center; width: 500px;height: 150px;width: 600px;}
    caption {font-size: 1.2rem; margin-bottom: 10px;}
    tr:first-of-type { background-color:wheat;}
    td,th {border: 1px solid; padding:5px}
</style>
</body>
</head>
</html>

视图类：View.php

<?php
class View
{
    public function fetch($data)
    {
        $table='<table>';
        $table.='<caption>用户列表</caption>';
        $table.='<tr><th>id</th><th>账户</th><th>姓名</th><th>tel</th><th>存款</th></tr>';
        foreach($data as $user) {
            $table .= '<tr>';
            $table .= '<td>' . $user['id'] . '</td>';
            $table .= '<td>' . $user['account'] . '</td>';
            $table .= '<td>' . $user['username'] . '</td>';
            $table .= '<td>' . $user['phone'] . '</td>';
            $table .= '<td>' . $user['money'] . '</td>';
            $table .= '</tr>';
        }
        $table.='</table>';
        return $table;
    }
}

控制器一，demo.php

<?php
require 'Model.php';
require 'View.php';
//创建控制   方法一：
class controller
{
    public function index()
    {
        $m=new Model;
        //print_r($m->getData());
        $data=$m->getData();
        $v=new View;
        $res=$v->fetch($data);
        return $res;
    }
}
$controller=new controller;
echo $controller->index();

控制方法二，demo1.php

<?php
require 'model.php';
require 'view.php';
//创建控制   方法二：
class controller1
{
    public function index($m,$v){
        //获取数据
        $data=$m->getData();
        //渲染视图
        return $v->fetch($data);
    }
}
$m=new Model;
$v=new View;
$controller1=new controller1;
$res=$controller1->index($m,$v);
echo $res;

控制方法三,demo2.php

<?php
require 'model.php';
require 'view.php';
class controller2
{
    //依赖对象属性
    private $m;
    private $v;
    public function __construct(Model $m, View $v)
    {
        $this->m = $m;
        $this->v = $v;
    }
    public function index()
    {
        $data = $this->m->getData();
        return $this->v->fetch($data);
    }
}
$m = new Model;
$v = new View;
$controller2 = new controller2($m,$v);
echo $controller2->index();

模型类：model.php

视图类：View.php

控制器一，demo.php

控制方法二，demo1.php

控制方法三,demo2.php

总结：MVC基本认识大概思路有了。还需要认真多抄几遍估计可以加深下认识。

相关文章