PHP implements database addition, deletion, query and modification-PHP Tutorial-php.cn

PHP implements database addition, deletion, query and modification

不言

Release： 2023-03-24 10:30:01

Original

2742 people have browsed it

This article mainly introduces the addition, deletion, query and modification of the database implemented by PHP. It has a certain reference value. Now I share it with you. Friends in need can refer to it

This article uses: jquery, tp framework

TP_3.2.2/Application/Home/Controller/StuController.class.php

<?php
/**
 * Created by PhpStorm.
 * User: root
 * Date: 2018/4/17
 * Time: 16:32
 */

namespace Home\Controller;


use Think\Controller;

class StuController extends Controller
{

  public  function StuShow(){
        $this->display("school/stu");
    }

   public function getdata(){
      $Studata = M(&#39;stu&#39;);
      $data[&#39;id&#39;]=&#39;&#39;;
      $data[&#39;name&#39;]=I(&#39;get.name&#39;);
      $data[&#39;age&#39;]=I(&#39;get.age&#39;);
      $data[&#39;num&#39;]=I(&#39;get.num&#39;);
      $data[&#39;address&#39;]=I(&#39;get.add&#39;);
      $Studata->add($data);
      $this->success("正在。。。",U(&#39;Stu/showdata&#39;));
    }
    public function showdata()
    {
        $Studata = M(&#39;stu&#39;);
        $data=$Studata->select();
        $this->assign(&#39;info&#39;,$data);
        $this->display(&#39;school/showdata&#39;);
    }
    public function del(){
        $id = I(&#39;get.id&#39;);
        $Studata = M(&#39;stu&#39;);
        $bool = $Studata->where([&#39;id&#39;=>$id])->delete();
        if($bool){
            echo 1;
        }else{
            echo 0;
        }
    }
    public function updata()
    {
        $id = I(&#39;get.id&#39;);
        $Studata = M(&#39;stu&#39;);
        $data = $Studata->where([&#39;id&#39;=>$id])->find();
        $this->assign(&#39;data&#39;,$data);//传递数据到前端页面
        $this->display("school/upshowdata");
    }

    public function updatadeal()
    {
        $Studata = M(&#39;stu&#39;);
        $id = I(&#39;get.id&#39;);
        $data[&#39;name&#39;]=I(&#39;get.name&#39;);
        $data[&#39;age&#39;]=I(&#39;get.age&#39;);
        $data[&#39;num&#39;]=I(&#39;get.num&#39;);
        $data[&#39;address&#39;]=I(&#39;get.add&#39;);
        $bool = $Studata->where([&#39;id&#39;=>$id])->save($data);
        if($bool){
            $this->showdata();
        }else{
            echo 0;
        }
    }
}

Copy after login

TP_3.2.2/Application/Home/View/school/showdata.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>数据展示界面</title>
</head>
<body id="content">
<center>
    <h2>学生信息展示</h2>
<table border="1">
    <th>编号</th>
    <th>姓名</th>
    <th>年龄</th>
    <th>学号</th>
    <th>籍贯</th>
    <th>操作</th>
    <th>操作</th>
<foreach name="info" item="vo" >
    <tr>
        <td>{$vo[&#39;id&#39;]}</td>
        <td>{$vo[&#39;name&#39;]}</td>
        <td>{$vo[&#39;age&#39;]}</td>
        <td>{$vo[&#39;num&#39;]}</td>
        <td>{$vo[&#39;address&#39;]}</td>
        <td><a href="javascript:void(0)" class="del" where="{$vo[&#39;id&#39;]}">删除</a></td>
            <td><a href="javascript:void(0)" class="up" where="{$vo[&#39;id&#39;]}">修改</a></td>
    </tr>

</foreach>
</table>
</center>
</body>
</html>

<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script>
    $(&#39;.del&#39;).click(function () {
        var where = $(this).attr(&#39;where&#39;);
        $.ajax({
            type: "get",
            url: "{:U(&#39;Stu/del&#39;)}?id="+where,
            success: function(msg){
                if(msg==1){
                    alert(&#39;删除成功&#39;);
                    location.href(&#39;showdata&#39;);
                }else {
                    alert(&#39;删除失败&#39;);
                }
            }
        });
    })

    $(&#39;.up&#39;).click(function () {
        var where = $(this).attr(&#39;where&#39;);
        location.href(&#39;updata?id=&#39;+where);
        // $.ajax({
        //     type: "get",
        //     url: "{:U(&#39;Stu/updata&#39;)}?id="+where,
        //     success: function(msg){
        //         $(&#39;#content&#39;).html(msg);
        //     }
        // });
    })
</script>

Copy after login

TP_3.2.2/Application/Home/View/school/stu.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title> 学号注册查询系统 </title>
</head>
<body>
<form action="{:U(&#39;Stu/getdata&#39;)}" method="get">
    <br>
    名字: <input type="text" name="name">
    <br>
    年龄: <input type="text" name="age">
    <br>
    学号:<input type="text" name="num">
    <br>
    籍贯:<input type="text" name="add">
    <br>
    <input type="submit" value="提交">
    <br>
</form>

</body>
</html>

Copy after login

TP_3.2.2/Application/Home/View/school/stu.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title> 学号注册查询系统 </title>
</head>
<body>
<form action="{:U(&#39;Stu/updatadeal&#39;)}" method="get">
    <input type="hidden" value="{$data[&#39;id&#39;]}" name="id">
    <br>
    名字: <input type="text" name="name" value="{$data[&#39;name&#39;]}">
    <br>
    年龄: <input type="text" name="age" value="{$data[&#39;age&#39;]}">
    <br>
    学号:<input type="text" name="num" value="{$data[&#39;num&#39;]}">
    <br>
    籍贯:<input type="text" name="add" value="{$data[&#39;address&#39;]}">
    <br>
    <input type="submit" value="提交">
    <br>
</form>

</body>
</html>

Copy after login

Execute enter in the browser: http ://127.0.0.1:90/TP_3.2.2/index.php/Home/Stu/stushow

Note: The port is usually 80. Since I modified the configuration file, it is 90

#Click to delete

Modify:

##Related recommendations:

How to implement data collection in PHP

The above is the detailed content of PHP implements database addition, deletion, query and modification. For more information, please follow other related articles on the PHP Chinese website!