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本文摘要

听说chatGPT很火,还会写代码,而且写出来的代码还真能跑起来!于是我尝试让chatGPT给我用PHP写一个简单的MVC框架出来。

image.png

没想到写出来的框架确实挺简单的,但是又没觉得哪里不对,于是我尝试把这个框架放到服务器试试能不能跑起来,最后还真的可以跑起来,为了让大家能够看到这个框架的演示,我直接爬一个热搜,然后便于展示数据。

当然了,这个框架只是告诉你框架的基本结构,实际上一个PHP框架的设计是非常精致的,本文主要是学习框架的基本结构。

框架目录

框架是真的很简单,简单到一眼看完结构。

image.png

app/controllers/controller.php

<?php

    // 加载模型和视图
    require_once('app/models/model.php');
    require_once('app/views/view.php');
    
    class Controller {
        
        private $model;
        private $view;
        
        public function __construct() {
            
            // 实例化模型
            $this->model = new Model();
            
            // 实例化视图
            $this->view = new View();
        }
        
        public function handleRequest() {
            
            // 获取数据
            $data = $this->model->getData();
            
            // 将数据传递给视图
            $this->view->render($data);
        }
    }
?>

app/models/model.php

<?php

    class Model {
        
        public function getData() {
        
            // 获取百度热搜
            $htmlcontent = file_get_contents('https://top.baidu.com/board?tab=realtime');
            
            // 截取热搜列表
            $hotList = substr($htmlcontent, strripos($htmlcontent, "hotList") + 19);
            
            // 返回列表
            return substr($hotList, 0, strrpos($hotList, "moreAppUrl") - 11);
        }
    }
?>

app/views/view.php

<!DOCTYPE html>
<html>
<head>
    <title>爬取百度热搜</title>
    <meta name="wechat-enable-text-zoom-em" content="true">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0,viewport-fit=cover">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="color-scheme" content="light dark">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <meta name="format-detection" content="telephone=no">
    <meta name="referrer" content="origin-when-cross-origin">
    <meta name="referrer" content="strict-origin-when-cross-origin">
    <style>
        *{
            padding: 0;
            margin: 0;
            list-style: none;
        }
        
        body{
            background: #EB4226;
        }
        
        @media screen and (min-width: 640px) and (max-width: 2000px) {
            
            #logo{
                width: 500px;
                margin: 100px auto 0;
            }
            
            #logo img{
                width: 300px;
                display: block;
                margin: 0 auto;
            }
            
            #hotlistCard{
                width: 35%;
                margin: 30px auto;
                background: #fff;
                padding: 20px 20px;
                border-radius: 20px;
                box-shadow: 0 0 10px #ccc;
            }
            
            #hotlistCard ul li{
                width: 100%;
                height: 35px;
                font-size: 15px;
                line-height: 35px;
            }
            
            #hotlistCard ul li a{
                text-decoration: none;
                color: #333;
            }
            #hotlistCard ul li a:hover{
                color: #5170F2;
                text-decoration: underline;
            }
            
            #hotlistCard ul li .xh{
                width: 25px;
                height: 25px;
                display: block;
                float: left;
                line-height: 25px;
                text-align: center;
                border-radius: 100%;
                margin:5px 0 0 0;
                margin-right: 8px;
            }
            
            #hotlistCard ul li .one_xh{
                color: #fff;
                background: #FE2D46;
            }
            
            #hotlistCard ul li .two_xh{
                color: #fff;
                background: #F60;
            }
            
            #hotlistCard ul li .three_xh{
                color: #fff;
                background: #FAA90E;
            }
            
            #hotlistCard ul li .default_xh{
                color: #666;
                background: #eee;
            }
            
            #hotlistCard ul li .hotScore{
                float: right;
                color: #999;
                font-size: 14px;
                line-height: 35px;
            }
        }
        
        @media screen and (max-width: 639px) {
            
            #logo{
                width: 100%;
                margin: 30px auto 0;
            }
            
            #logo img{
                width: 200px;
                display: block;
                margin: 0 auto;
            }
            
            #hotlistCard{
                width: calc(90% - 40px);
                margin: 30px auto;
                background: #fff;
                padding: 20px 20px;
                border-radius: 20px;
                box-shadow: 0 0 10px #ccc;
            }
            
            #hotlistCard ul li{
                width: 100%;
                height: 35px;
                font-size: 15px;
                line-height: 35px;
            }
            
            #hotlistCard ul li .title{
                width: 250px;
                display: block;
                float: left;
                white-space: nowrap; text-overflow: ellipsis; overflow: hidden; word-break: break-all;
            }
            
            #hotlistCard ul li a{
                text-decoration: none;
                color: #333;
            }
            #hotlistCard ul li a:hover{
                color: #5170F2;
                text-decoration: underline;
            }
            
            #hotlistCard ul li .xh{
                width: 25px;
                height: 25px;
                display: block;
                float: left;
                line-height: 25px;
                text-align: center;
                border-radius: 100%;
                margin:5px 0 0 0;
                margin-right: 8px;
            }
            
            #hotlistCard ul li .one_xh{
                color: #fff;
                background: #FE2D46;
            }
            
            #hotlistCard ul li .two_xh{
                color: #fff;
                background: #F60;
            }
            
            #hotlistCard ul li .three_xh{
                color: #fff;
                background: #FAA90E;
            }
            
            #hotlistCard ul li .default_xh{
                color: #666;
                background: #eee;
            }
            
            #hotlistCard ul li .hotScore{
                float: right;
                color: #999;
                font-size: 14px;
                line-height: 35px;
                display: none;
            }
        }
        
    </style>
</head>
<body>
    
    <!--logo-->
    <div id="logo">
        <img src="https://fyb-pc-static.cdn.bcebos.com/static/asset/homepage@2x_7926b0bf1e591ee96d2fc68b3a8a1ee0.png" />
    </div>
    
    <!--列表-->
    <?php

        class View {
            
            public function render($data) {
                
                echo '<div id="hotlistCard"><ul>';
                $xh = 0;
                foreach (json_decode($data,true) as $k => $v) {
                    
                    // 标题
                    $baidu_title = json_decode(json_encode($v),true)["query"];
                    
                    // 链接
                    $baidu_url = json_decode(json_encode($v),true)["appUrl"];
                    
                    // 热度
                    $baidu_hotScore = json_decode(json_encode($v),true)["hotScore"];
                    
                    // 序号
                    $xh = $k+1;
                    
                    if($k == 0){
                        
                        echo '<li><span class="xh one_xh">'.$xh.'</span><a href="'.$baidu_url.'" target="blank"><span class="title">'.$baidu_title.'</span></a><span class="hotScore">指数:'.$baidu_hotScore.'</span></li>';
                    }else if($k == 1){
                        
                        echo '<li><span class="xh two_xh">'.$xh.'</span><a href="'.$baidu_url.'" target="blank"><span class="title">'.$baidu_title.'</span></a><span class="hotScore">指数:'.$baidu_hotScore.'</span></li>';
                    }else if($k == 2){
                        
                        echo '<li><span class="xh three_xh">'.$xh.'</span><a href="'.$baidu_url.'" target="blank"><span class="title">'.$baidu_title.'</span></a><span class="hotScore">指数:'.$baidu_hotScore.'</span></li>';
                    }else{
                        
                        echo '<li><span class="xh default_xh">'.$xh.'</span><a href="'.$baidu_url.'" target="blank"><span class="title">'.$baidu_title.'</span></a><span class="hotScore">指数:'.$baidu_hotScore.'</span></li>';
                    }
                    
                }
                echo '</ul></div>';
            }
        }
    ?>
    
</body>
</html>

index.php

<?php

    // 加载控制器
    require('app/controllers/controller.php');
    
    // 实例化控制器
    $controller = new Controller();
    $controller->handleRequest();
    
?>

代码解释

MVC框架已经完成了。当用户请求应用程序时,index.php 将会被调用,然后调用控制器,并让控制器处理请求。控制器使用模型来获取所需的数据,然后使用视图来呈现数据并返回给用户。

演示

http://demo.likeyunba.com/php-mvc-framework/

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