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PHP连接数据库MySQL打造xxx管理系统，实现简单的增删改查功能

分类：PHP作者：酱酱子qq原文地址

目录

前言

概述

内容

创建数据库表

实现列表

         新增用户 

         删除用户 

         编辑用户

前言

       最近刚学完PHP和MysqL,历时半个多月时间完成了这样一个简单的算是人员管理系统吧，为了加深印象总结一下，还有很多不足之处，希望大家多多指正，一起学习！

概述

       完成这个系统我们要用到的软件有VScode(大家应该都有），Navicat(数据库管理工具），XAMPP(大家如果没有装数据库，可以在下载时勾选里面的MysqL)。还需在文件中加入layui。

总共有以下这些文件：

 

内容

  1. 首先我们需要在Navicat中建立两个表，第一个时登录系统的表，主要用于存放账号密码

 

第二个用来实现增删改查的user表

 

连接数据库db.PHP

<?PHP
$dsn = "MysqL:host=127.0.0.1;port=3306;dbname=system;charset=utf8";
$MysqLAccount = "root";
$MysqLPassword = "";
// 创建PDO对象
$pdo = new PDO($dsn,$MysqLAccount,$MysqLPassword);

//设置取值方式
// $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE,PDO::FETCH_ASSOC);

获取图片upload.PHP

.实现登录

  • login.PHP

  • <!DOCTYPE html>
<html lang="en">

<head>
    <Meta charset="UTF-8">
    <Meta http-equiv="X-UA-Compatible" content="IE=edge">
    <Meta name="viewport" content="width=device-width,initial-scale=1.0">
    <title>管理系统</title>
    <link rel="stylesheet" href="../utils/layui-v2.7.6/css/layui-css">
    <script src="../utils/layui-v2.7.6/layui/layui.js"></script>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.1/jquery.js"></script>
    <style>
        body {
            background-color: #5FB878;
            /* display: flex;
            justify-content: center;
            align-items: center; */
        }

        .Box {
            width: 330px;
            height: 230px;
            background-color: #fff;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%,-50%);
            border-radius: 6px;
            Box-shadow: rgba(29,203,122,0.3) 0px 0px 0px 3px;
            padding: 30px;
            Box-sizing: border-Box;
            display: flex;
            flex-direction: column;
            justify-content: space-between;

        }

        .btns {
            display: flex;
            justify-content: space-between;
        }
    </style>
</head>

<body>
    <div class="Box">
        <h2>后台管理系统</h2>
        <form class="layui-form" action="../server/server_login.PHP" method="POST">
            <div class="layui-form-item">
                
                <div>
                    <input type="text" name="username" required lay-verify="required" placeholder="请输入账号" autocomplete="off" class="layui-input">
                </div>
            </div>
            <div class="layui-form-item">
                
                <div >
                    <input type="password" name="password" required lay-verify="required" placeholder="请输入密码" autocomplete="off" class="layui-input">
                </div>
            </div>
            
            <div class="layui-form-item">
                <div class="layui-input-block">
                    <button class="layui-btn" lay-submit lay-filter="formDemo">立即提交</button>
                    <button type="reset" class="layui-btn layui-btn-primary">重置</button>
                </div>
            </div>
        </form>

    </div>
    <script>
        //Demo
        // layui.use('form',function() {
        //     var form = layui.form;

        //     //提交
        //     form.on('submit(formDemo)',function(data) {
        //         layer.msg(JSON.stringify(data.field));
        //         return false;
        //     });
        // });
    </script>
</body>

</html>

    server_login.PHP

  • <?PHP

require_once '../server/db.PHP';
//获取账号密码
$username = $_POST['username'];
$password = $_POST['password'];
//定义语句
$sql = "select * from admin where username = '$username' and password = '$password'";


//执行
$stmt = $pdo->query($sql);
$user = $stmt->fetch();

//判断
if(empty($user)){
    //未成功，返回登录页
    echo "<script>alert('账号或密码错误'); history.back();</script>";

}else{
    //成功
    session_start();
    //存储session
    $_SESSION['username'] = $user['username'];
    echo "<script>location.href = '../view/userlist.PHP'</script>";
}

    效果

  •  实现列表

  • <div class="layui-header">
            <div class="layui-logo layui-hide-xs layui-bg-black">后台管理系统</div>
            <!-- 头部区域（可配合layui 已有的水平导航） -->
            <ul class="layui-nav layui-layout-left">
                <!-- 移动端显示 -->
                <li class="layui-nav-item layui-show-xs-inline-block layui-hide-sm" lay-header-event="menuLeft">
                    <i class="layui-icon layui-icon-spread-left"></i>
                </li>

                <li class="layui-nav-item layui-hide-xs"><a href="">控制台</a></li>
                <li class="layui-nav-item layui-hide-xs"><a href="">商品管理</a></li>
                <li class="layui-nav-item layui-hide-xs"><a href="">用户</a></li>
                <li class="layui-nav-item">
                    <a href="javascript:;">其他</a>
                    <dl class="layui-nav-child">
                        <dd><a href="">menu 11</a></dd>
                        <dd><a href="">menu 22</a></dd>
                        <dd><a href="">menu 33</a></dd>
                    </dl>
                </li>
            </ul>
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item layui-hide layui-show-md-inline-block">
                    <a href="javascript:;">
                        <img src="gg.jpg" class="layui-nav-img">
                        tester
                    </a>
                    <dl class="layui-nav-child">
                        <dd><a href="">Your Profile</a></dd>
                        <dd><a href="">Settings</a></dd>
                        <dd><a href="">Sign out</a></dd>
                    </dl>
                </li>
                <li class="layui-nav-item" lay-header-event="menuRight" lay-unselect>
                    <a href="javascript:;">
                        <i class="layui-icon layui-icon-more-vertical"></i>
                    </a>
                </li>
            </ul>
        </div>

        <div class="layui-side layui-bg-black">
            <div class="layui-side-scroll">
                <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
                <ul class="layui-nav layui-nav-tree" lay-filter="test">
                    <li class="layui-nav-item layui-nav-itemed">
                        <a class="" href="javascript:;">所有用户</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">用户列表</a></dd>
                            <dd><a href="javascript:;">添加用户</a></dd>
                            <dd><a href="javascript:;">menu 3</a></dd>
                            <dd><a href="">the links</a></dd>
                        </dl>
                    </li>
                    <li class="layui-nav-item">
                        <a href="javascript:;">新闻管理</a>
                        <dl class="layui-nav-child">
                            <dd><a href="javascript:;">list 1</a></dd>
                            <dd><a href="javascript:;">list 2</a></dd>
                            <dd><a href="">超链接</a></dd>
                        </dl>
                    </li>
                    <li class="layui-nav-item"><a href="javascript:;">云市场</a></li>
                    <li class="layui-nav-item"><a href="">发布商品</a></li>
                </ul>
            </div>
        </div>

    userlist.PHP

  • <?PHP
session_start();
// $_SESSION['username']
if (empty($_SESSION['username'])) {
    echo "<script>alert('请先登录');location.href = './login.PHP'</script>";
}

//引入数据库连接文件
require_once '../server/server_userlist.PHP';

?>
<!DOCTYPE html>
<html>

<head>
    <Meta charset="UTF-8">
    <Meta name="viewport" content="width=device-width">
    <title>首页</title>
    <link rel="stylesheet" href="../utils/layui-v2.7.6/layui/css/layui.css">
    <script src="../utils/layui-v2.7.6/layui/layui.js"></script>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.1/jquery.js"></script>
</head>

<style>
    .btn1 {
        padding: 15px;
    }

    img {
        width: 30px;
        height: 30px;
    }
</style>

<body>
    <div class="layui-layout layui-layout-admin">

        <?PHP include './nav.PHP' ?>
        <div class="layui-body">
            <!-- 内容主体区域 -->

            <div style="padding: 15px;">

                <!-- 页面主体内容 -->
                <button type="buttton" class="layui-btn" onclick="location.href= 'useradd.PHP'">
                    <i class="layui-icon layui-icon-add-circle-fine"></i> 新增用户
                </button>

                <!-- 显示用户信息的表格 -->
                <table class="layui-table">
                    <colgroup>
                        <col width="150">
                        <col width="200">
                        <col>
                    </colgroup>
                    <thead>
                        <tr>
                            <th>编号</th>
                            <th>账号</th>
                            <th>密码</th>
                            <th>姓名</th>
                            <th>头像</th>
                            <th>身份</th>
                            <th>年龄</th>
                            <th>生日</th>
                            <th>创建时间</th>
                            <th>操作</th>
                        </tr>
                    </thead>
                    <tbody>
                        <?PHP
                        foreach ($users as $user) {
                            echo "<tr>
                     <td>{$user['id']}</td>
                     <td>{$user['username']}</td>
                     <td>{$user['password']}</td>
                     <td>{$user['name']}</td>
                     <td><img src='{$user['icon']}'></td> 
                     <td>{$user['type_name']}</td>
                     <td>{$user['age']}</td>
                     <td>{$user['birthday']}</td>
                     <td>{$user['ctime']}</td>
                     <td>

                     <button type='button' class='layui-btn layui-btn-normal layui-btn-sm ' onclick='toEditPage(${user['id']})'>编辑</button>
                     <button type='button' class='layui-btn layui-btn-danger layui-btn-sm ' onclick='delUser(${user['id']},\"{$user['name']}\")'>删除</button>
                     </td>
                     
                     </tr>";
                        }
                        ?>
                    </tbody>
                </table>

                <!-- 分页 -->
                <div id="test1"></div>
            </div>
        </div>


        <div class="layui-footer">
            <!-- 底部固定区域 -->
            底部固定区域
        </div>
    </div>

    <!-- <script src="./layui/layui.js"></script> -->
    <script>
        //删除用户
        function delUser(id,name) {
            layer.confirm('确定要删除'+name+'吗?',{
                icon: 3,title: '提示'
            },function(index) {
                window.location.href = '../server/server_userdelete.PHP?id=' + id;
                layer.close(index);

            });
        }

        //编辑用户
        function toEditPage(id) {

            window.location.href = "./useredit.PHP?id=" + id;
        
        }


        // JS分页相关
        layui.use('laypage',function() {
            var laypage = layui.laypage;

            //执行一个laypage实例
            laypage.render({
                elem: 'test1' //注意，这里的 test1 是 ID，不用加 # 号,count: 50 //数据总数，从服务端得到
            });
        });

        //JS 
        layui.use(['element','layer','util'],function() {
            var element = layui.element,layer = layui.layer,util = layui.util,$ = layui.$;

            //头部事件
            util.event('lay-header-event',{
                //左侧菜单事件
                menuLeft: function(othis) {
                    layer.msg('展开左侧菜单的操作',{
                        icon: 0
                    });
                },menuRight: function() {
                    layer.open({
                        type: 1,content: '<div style="padding: 15px;">处理右侧面板的操作</div>',area: ['260px','100%'],offset: 'rt' //右上角,anim: 5,shadeClose: true
                    });
                }
            });

        });
    </script>
</body>

</html>

    server_userlist.PHP

  • <!-- 通过数据库获取用户数据 -->
<?PHP
//引入数据库连接文件
require_once '../server/db.PHP';

//定义sql语句
$sql = "select * from user";

//执行查询
$stmt = $pdo->query($sql);

//处理结果集
$users = $stmt->fetchAll();

date_default_timezone_set('Asia/Shanghai');
// echo "<pre>";
// foreach ($users as $v){
    
//     print_r($v);
// }
//对结果集中数据做转换

foreach ($users as &$item) {
    switch($item['type']) {
        case 0:
            $item['type_name'] = '校长';
            break;
        case 1:
            $item['type_name'] = '教师';
            break;
        case 2:
            $item['type_name'] = '学生';
            break;       
    }

$item['ctime'] = date('Y-m-d H-i-s',$item['create_time']);
}

    效果

  • 新增用户 

  • useradd.PHP
  • <?PHP
session_start();
// $_SESSION['username']
if (empty($_SESSION['username'])) {
    echo "<script>alert('请先登录');location.href = './login.PHP'</script>";
}

//引入数据库连接文件

?>
<!DOCTYPE html>
<html>

<head>
    <Meta charset="UTF-8">
    <Meta name="viewport" content="width=device-width">
    <title>新增用户</title>
    <link rel="stylesheet" href="../utils/layui-v2.7.6/layui/css/layui.css">
    <script src="../utils/layui-v2.7.6/layui/layui.js"></script>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.1/jquery.js"></script>
</head>

<style>
    .btn1 {
        padding: 15px;
    }

    #show_img {
        width: 40px;
        height: 40px;
        display: none;
    }
</style>

<body>
    <div class="layui-layout layui-layout-admin">

        <?PHP include './nav.PHP' ?>
        <div class="layui-body">
            <!-- 内容主体区域 -->

            <div style="padding: 15px;width: 450px;">
                <!-- 新增用户的表单 -->

                <form class="layui-form" action="../server/server_useradd.PHP" method="POST">
                    <div class="layui-form-item">
                        <label class="layui-form-label">账号</label>
                        <div class="layui-input-block">
                            <input type="text" name="username" required lay-verify="required" placeholder="请输入编号" autocomplete="off" class="layui-input">
                        </div>
                    </div>

                    <div class="layui-form-item">
                        <label class="layui-form-label">密码</label>
                        <div class="layui-input-block">
                            <input type="password" name="password" required lay-verify="required" placeholder="请输入密码" autocomplete="off" class="layui-input">
                        </div>
                    </div>

                    <form class="layui-form" action="">
                        <div class="layui-form-item">
                            <label class="layui-form-label">姓名</label>
                            <div class="layui-input-block">
                                <input type="text" name="name" required lay-verify="required" placeholder="请输入姓名" autocomplete="off" class="layui-input">
                            </div>
                        </div>

                        <div class="layui-form-item">
                            <label class="layui-form-label">身份</label>
                            <div class="layui-input-block">
                                <input type="radio" name="type" value="0" title="校长">
                                <input type="radio" name="type" value="1" title="教师">
                                <input type="radio" name="type" value="2" title="学生" checked>
                            </div>
                        </div>

                        <div class="layui-form-item">
                            <div class="layui-form-item">
                                <label class="layui-form-label">年龄</label>
                                <div class="layui-input-block">
                                    <input type="text" name="age" required lay-verify="required" placeholder="请输入年龄" autocomplete="off" class="layui-input">
                                </div>
                            </div>

                            <div class="layui-form-item">
                                <div class="layui-form-item">
                                    <label class="layui-form-label">生日</label>
                                    <div class="layui-input-block">
                                        <input type="text" name="birthday" class="layui-input" id="birthday">
                                    </div>
                                </div>

                                <div class="layui-form-item">
                                    <div class="layui-form-item">
                                        <label class="layui-form-label">头像</label>
                                        <input type="hidden" name="icon">
                                        <div class="layui-input-block">
                                            <button type="button" class="layui-btn" id="pic">
                                                <i class="layui-icon">&#xe67c;</i>上传图片
                                            </button>
                                            <img src=" " alt="" id="show_img">

                                        </div>
                                    </div>

                                    <div class="layui-form-item">
                                        <div class="layui-input-block">
                                            <button class="layui-btn" lay-submit lay-filter="formDemo">立即提交</button>
                                            <button type="reset" class="layui-btn layui-btn-primary">重置</button>
                                        </div>
                                    </div>
                    </form>

            </div>
        </div>

        <div class="layui-footer">
            <!-- 底部固定区域 -->
            底部固定区域
        </div>
    </div>

    <!-- <script src="./layui/layui.js"></script> -->
    <script>
        //js
        // layui.use('form',function(){
        //   var form = layui.form;

        //   //监听提交
        //   form.on('submit(formDemo)',function(data){

        //     return false;
        //   });
        // });

        //头像上传相关操作
        layui.use('upload',function() {
            var upload = layui.upload;

            //执行实例
            var uploadInst = upload.render({
                elem: '#pic' //绑定元素,url: '../server/upload.PHP' //上传接口,field:'pic',done: function(res) {
                    console.log(res);
                    //上传完毕回调
                    $("input[name='icon']").attr("value",res.data.path);
                    $("input[name='pic']").attr("value",res.data.path);

                    $("#show_img").attr("src",res.data.path).css('display',"inline-block")
                },error: function() {
                    //请求异常回调
                }
            });
        });
    //   日期相关操作
        layui.use('laydate',function() {
            var laydate = layui.laydate;

            //执行一个laydate实例
            laydate.render({
                elem: '#birthday' //指定元素
            });
        });
        //JS 
        layui.use(['element',shadeClose: true
                    });
                }
            });

        });
    </script>
</body>

</html>

    server_useradd.PHP

  • <!-- 新增用户的后端操作 -->

<?PHP

//引入数据库连接文件
require_once './db.PHP';
//获取表单参数
$username = $_POST['username'] ;
$password = $_POST['password'] ;
$name = $_POST['name'] ;
$type = $_POST['type'];
$age = $_POST['age'] ;
$birthday = $_POST['birthday'] ;
$icon = $_POST['icon'] ;
$create_time = time();

//定义sql语句
$sql = "insert into user values (null,'$username','$password','$name','$icon',$type,$age,'$birthday',$create_time)";

//执行
$isSuccess = $pdo->exec($sql);

//判断并处理结果
if($isSuccess) {
    echo "<script>location.href = '../view/userlist.PHP'</script>";
}else{
    echo "<script>alert('新增失败');location.href = '../view/useradd.PHP'</script>";
}

    效果

  • 删除用户 

  • server_userdelete.PHP
  • <?PHP

//引入数据库连接文件
require_once './db.PHP';

//获取参数
$id = $_GET['id'];

//定义sql
$sql = "delete from user where id = " .$id;
//执行sql

$isSuccess = $pdo->exec($sql);

//判断并处理结果
if($isSuccess) {
    echo "<script>location.href = '../view/userlist.PHP'</script>";
}else{
    echo "<script>alert('删除失败');location.href = '../view/userlist.PHP'</script>";
}

    效果

  •  编辑用户

  • useredit.PHP
  • <?PHP

include '../server/server_useredit.PHP'
?>

<!DOCTYPE html>
<html>

<head>
    <Meta charset="UTF-8">
    <Meta name="viewport" content="width=device-width">
    <title>编辑用户</title>
    <link rel="stylesheet" href="../utils/layui-v2.7.6/layui/css/layui.css">
    <script src="../utils/layui-v2.7.6/layui/layui.js"></script>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.1/jquery.js"></script>
</head>
      <style>
        .btn1{
         padding: 15px;
        }
        img{
         width: 30px;
         height: 30px;
        }
        </style>
<body>
  <div class="layui-layout layui-layout-admin">
    
    <?PHP
   include './nav.PHP'
    ?>

    <?PHP $id=$_GET['id'] ?>

    <div class="layui-body">
      
      <!-- 内容主体区域 -->
      <div style="padding:15px;width:450px">
        <!-- 添加用户按钮 -->
        <button type="button" class="layui-btn layui-btn-sm layui-btn" onclick="location.href='./userlist.PHP'">
          <i class="layui-icon layui-icon-left ">返回</i>
        </button>



        <form class="layui-form" action="../server/server_userupdate.PHP" method="POST">
     
          <div class="layui-input-block">
          </div>

          <div class="layui-form-item">
            <label class="layui-form-label">姓名</label>
            <div class="layui-input-block"> 
           <?PHP echo "<input type='text' name='name' required lay-verify='required' placeholder='{$name}'   autocomplete='off' class='layui-input'>"; ?>  
            </div>
          </div>

        
          <div class="layui-form-item">
            <label class="layui-form-label">账号</label>
            <div class="layui-input-block">
            <?PHP echo " <input type='text' name='username'  placeholder='{$username}'  autocomplete='off' class='layui-input' >" ?>  
            </div>
          </div>


          <div class="layui-form-item">
            <label class="layui-form-label">密码</label>
            <div class="layui-input-block">
            <?PHP echo" <input type='password' name='password' required lay-verify='required' placeholder='{$password}' autocomplete='off' class='layui-input'>"; ?>
            </div>
          </div>

          <div class="layui-form-item">
            <label class="layui-form-label">年龄</label>
            <div class="layui-input-block">
            <?PHP echo "<input type='text' name='age' required lay-verify='required'  placeholder='{$age}' autocomplete='off' class='layui-input'>" ?>   
            </div>
          </div>

          <div class="layui-form-item">
            <label class="layui-form-label">出生日期</label>
            <div class="layui-input-block">
            <?PHP echo " <input type='text' name='birthday'  placeholder='{$birthday}'  class='layui-input' id='birthday'>" ?>  
            </div>
          </div>


          <?PHP
          $check0="";
          $check1="";
          $check2="";
          switch($type){
            case 0:
              $check0="checked";
              break;
            case 1:
              $check1="checked";
              break;
            case 2:
                $check2="checked";
                break;
          }
          ?>

          <div class="layui-form-item">
            <label class="layui-form-label">身份</label>
            <div class="layui-input-block" >
              <input type="radio" name="type" value="0" title="校长" <?PHP echo $check0; ?>>
              <input type="radio" name="type" value="1" title="老师" <?PHP echo $check1; ?>>
              <input type="radio" name="type" value="2" title="学生" <?PHP echo $check2; ?>>
            </div>
          </div>

          <div class="layui-form-item">
            <label class="layui-form-label">头像</label>
            <input type="hidden" name="icon">
            <div class="layui-input-block">
              <button type="button" class="layui-btn" id="pic">
                <i class="layui-icon">&#xe67c;</i>更换头像
              </button>
              <img src="" id="show_img">
            </div>
          </div>
          
          
          <input type='hidden' name='id' value='<?PHP echo $id ?>' class='layui-input' > 

          
          <div class="layui-form-item">
            <div class="layui-input-block">
          
              <button class="layui-btn" lay-submit lay-filter="formDemo" >立即提交</button>
              <button type="reset" class="layui-btn layui-btn-primary">重置</button>
            </div>
          </div>
        </form>

</div>
</div>

<div class="layui-footer">
<!-- 底部固定区域 -->
</div>
</div>

<script>
    layui.use('upload',function() {
      var upload = layui.upload;

      //执行实例
      var uploadInst = upload.render({
        elem: '#pic' //绑定元素,field: 'pic',done: function(res) {
          //上传完毕回调
          $("input[name='icon']").attr("value",res.data.path);
          $("#show_img").attr("src",'inline-block');
        },error: function() {
          //请求异常回调

        }

      });
    });
    </script>

<script>
// <!-- 出生日期的script -->
    layui.use('laydate',function() {
      var laydate = layui.laydate;

      //执行一个laydate实例
      laydate.render({
        elem: '#birthday' //指定元素
      });
    });
  </script>

<script>
//JS 
layui.use(['element',function() {
var element = layui.element,$ = layui.$;

//头部事件
util.event('lay-header-event',{
//左侧菜单事件
menuLeft: function(othis) {
layer.msg('展开左侧菜单的操作',{
  icon: 0
});
},menuRight: function() {
layer.open({
  type: 1,shadeClose: true
});
}
});

});
</script>
</body>

</html>

    server_useredit.PHP

  • <?PHP

//引入数据库连接文件

require_once '../server/db.PHP';


$id=$_GET['id'];
$sql="select * from user where id=".$id;
// echo $sql;
$stmt=$pdo->query($sql);
$user=$stmt->fetch();



$ids=$user["id"];
$name=$user["name"];
$username=$user["username"];
$password=$user["password"];
$age=$user["age"];
$birthday= $user["birthday"];
$type= $user["type"];
$icon=$user["icon"];

    server_userupdate.PHP

  • <?PHP
//引入数据库连接文件

require_once './db.PHP';
//获取表单参数
$username = $_POST["username"];
$name = $_POST["name"];
$password = $_POST["password"];
$age = $_POST["age"];
$birthday = $_POST["birthday"];
$type = $_POST["type"];
$icon = $_POST["icon"];
$id = $_POST["id"];


$sql = "update user set username='$username',name='$name',password='$password',age=$age,birthday='$birthday',type=$type,icon='$icon' where  id='$id'";

print_r($sql);
$stmt = $pdo->exec($sql);
if ($stmt == true) {
    echo "<script>location.href='../view/userlist.PHP';</script>";
} else {
    echo "<script>alert('更新失败！');location.href='../view/useredit.PHP';</script>";
}

    效果

  •  

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