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php實現資料庫增刪查改步驟詳解

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這次給大家帶來php實現資料庫增刪查改步驟詳解，php實現資料庫增刪查改的注意事項有哪些，下面就是實戰案例，一起來看一下。

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>資料展示介面</title> </head> <body id="content"> <center>  <h2>學生資訊展示</h2> <table border="1">  <th>編號</th>  <th>姓名</th>  <th>年齡</th>  <th>學號</th>  <th>籍貫</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']}">刪除</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('刪除成功');      location.href('showdata');     }else {      alert('刪除失敗');     }    }   });  })  $('.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> 學號註冊查詢系統 </title> </head> <body> <form action="{:U('Stu/getdata')}" method="get">  <br>  名字: <input type="text" name="name">  <br>  年齡: <input type="text" name="age">  <br>  學號:<input type="text" name="num">  <br>  籍貫:<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> 學號註冊查詢系統 </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>  年齡: <input type="text" name="age" value="{$data['age']}">  <br>  學號:<input type="text" name="num" value="{$data['num']}">  <br>  籍貫:<input type="text" name="add" value="{$data['address']}">  <br>  <input type="submit" value="提交">  <br> </form> </body> </html>

執行在瀏覽器裡面輸入：http://127.0.0.1:90/TP_3.2.2/index.php/Home/Stu/stushow

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