Home >Backend Development >PHP Tutorial >Detailed explanation of the steps to implement database addition, deletion, query and modification in PHP
This time I will bring you a detailed explanation of the steps for adding, deleting, checking and modifying the database in PHP. What are the precautions for adding, deleting, checking and modifying the database in PHP. The following is a practical case, let’s take a look.
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);
$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)" rel="external nofollow" rel="external nofollow" class="del" where="{$vo['id']}">删除</a></td>
<td><a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" class="up" where="{$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>To execute, enter in the browser: http://127.0.0.1:90/TP_3.2.2/index.php/Home/Stu/stushowClick to delete
Detailed explanation of the use of PHP bubble sort
Detailed explanation of the steps to implement Huffman encoding/decoding in PHP
The above is the detailed content of Detailed explanation of the steps to implement database addition, deletion, query and modification in PHP. For more information, please follow other related articles on the PHP Chinese website!