这次给大家带来php实现数据库增删查改步骤详解,php实现数据库增删查改的注意事项有哪些,下面就是实战案例,一起来看一下。

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=""></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::90/TP_3.2.2/index.php/Home/Stu/stushow

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