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PHP实现数据库的增删查改

时间：2021-07-01 10:21:17 帮助过：1人阅读

这篇文章主要介绍了PHP实现数据库的增删查改，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下

本文用到：jquery、tp框架

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

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

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>{$vo['id']}</td>
        <td>{$vo['name']}</td>
        <td>{$vo['age']}</td>
        <td>{$vo['num']}</td>
        <td>{$vo['address']}</td>
        <td><a href="javascript:void(0)" class="del" where="{$vo['id']}">删除</a></td>
            <td><a href="javascript:void(0)" class="up" where="{$vo['id']}">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>
    $('.del').click(function () {
        var where = $(this).attr('where');
        $.ajax({
            type: "get",
            url: "{:U('Stu/del')}?id="+where,
            success: function(msg){
                if(msg==1){
                    alert('删除成功');
                    location.href('showdata');
                }else {
                    alert('删除失败');
                }
            }
        });
    })

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

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('Stu/getdata')}" 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>

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('Stu/updatadeal')}" method="get">
    <input type="hidden" value="{$data['id']}" name="id">
    <br>
    名字: <input type="text" name="name" value="{$data['name']}">
    <br>
    年龄: <input type="text" name="age" value="{$data['age']}">
    <br>
    学号:<input type="text" name="num" value="{$data['num']}">
    <br>
    籍贯:<input type="text" name="add" value="{$data['address']}">
    <br>
    <input type="submit" value="提交">
    <br>
</form>

</body>
</html>

执行在浏览器里面输入：http://127.0.0.1:90/TP_3.2.2/index.php/Home/Stu/stushow

注意：端口一般是80，由于我修改过配置文件所以是90

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修改：

PHP实现数据库的增删查改

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