echo " <div> <button onclick='previous($id)'><<</button> <button onclick='next($id)'>>></button> </div> <script> function previous(currentId) { window.location.href = 'navigate.php?subcategory=$subcategoryId&id=' + (currentId - 1); } function next(currentId) { window.location.href = 'navigate.php?subcategory=$subcategoryId&id=' + (currentId + 1); } </script> ";这写的是什么

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>学生成绩管理系统</title> //<script type="text/javascript" src="js/script.js"></script> </head> <body> 学生成绩管理系统 <button>添加</button> <?php require_once('./server/conn.php'); $sql = "select * from result"; $result = $conn->query($sql); if ($result->num_rows > 0) { //输出数据 while ($row = $result->fetch_assoc()) { ?> <?php echo $row['id'] ?> <?php echo $row['name'] ?> <?php echo $row['age'] ?> <?php echo $row['result'] ?> <button onclick = "toUpdata(this) ">修改</button> <button onclick = "remove(this)">删除</button> <?php } } $conn->close(); ?> </body> </html> 请给我找出错误

<button onclick="update(this)">修改</button> <button onclick="remove(this)">删除</button> </td> </tr> <?php } } $conn->close(); ?>  </table> </body> </...

把以下代码变成php执行<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Cookie转JSON</title> </head> <body> <label for="cookie">Cookie:</label> <textarea id="cookie" name="cookie" cols="50" rows="10"></textarea> <button onclick="convertCookieToJson()">转换</button> <label for="json">JSON:</label> <textarea id="json" name="json" cols="50" rows="10"></textarea> <script> function convertCookieToJson() { var cookie = document.getElementById("cookie").value; var cookiesArray = cookie.split("; "); var cookiesObject = {}; cookiesArray.forEach(function(cookie) { var parts = cookie.split("="); cookiesObject[parts[0]] = parts[1]; }); document.getElementById("json").value = JSON.stringify(cookiesObject); } </script> </body> </html>

<button onclick="convertCookieToJson()">转换</button> </div> <div> <label for="json">JSON:</label> <textarea id="json" name="json" cols="50" rows="10"></textarea> </div> <?php if(isset($_POST...

给 <button class='prev-button'> << </button> <button class='next-button'> >> </button> 按钮添加响应时间

<button class='next-button'> >> </button> </div> </div> <script> var image = document.querySelector('.image-container img'); var prevButton = document.querySelector('.prev-button'); var ...

找出这段代码的错误并给出正确答案<html> <head> <meta charset="utf-8" /> <script type="text/javascript" src="js/index.js"></script> <title>学生成绩管理系统</title> </head> <body> 学生成绩管理系统 <button>添加</button> </body> </html> <?php result_once('./server.conn.php'); $sql = "select * from result"; $result = $conn->query($sql); if ($result->num_rows > 0) { //输出数据 while($row = $result->fetch_assoc()) { ?> <?php echo $row['id'] ?> <?php echo $row['name'] ?> <?php echo $row['age'] ?> <?php echo $row['result'] ?> <button onclick="toUpdate(this)">修改</button> <button onclick="remove(this)">删除</button> <?php } } $conn->close(); ?> <script type="text/jscript"> function remove(ele){ //删除成绩 let id = ele.parentElement.parentElement.children[0].innerText; window.location.href="./server/remove_server.php?id=" + id; } function toUpdate(ele){ //跳转到成绩修改页面 let id = ele.parentElement.parentElement.children[0].innerText; window.location.href="./update.php?id=" + id; } </script>

<button onclick="toUpdate(this)">修改</button> <button onclick="remove(this)">删除</button> </td> </tr> <?php } } $conn->close(); ?> <script type="text/jscript"> function remove(ele) { //删除成绩...

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>登录</title> <script type="text/javascript" src="js/jquery-1.12.4.js" ></script> </head> <body> <form> <fieldset> 用户名：<input type="text" id="username" />
密码：<input type="text" id="password" />
</fieldset> </form> <button id="btn">登录</button> <script> </script> </body> </html> 写出此代码如何使用Ajax登录成功，同时写出其中文件的代码

<button id="btn">登录</button> <div id="dv"></div> <script> $(document).ready(function() { $("#btn").click(function() { var uname = $("#username").val(); var pwd = $("#password").val(); $.ajax...

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>登录</title> </head> <body> <style> body { background-image: url(C.jpg); background-repeat: no-repeat; background-size: cover; } </style> 登录 <?php if(isset($error_message)): ?> <?php echo $error_message; ?> <?php endif; ?> <form action="" method="post"> <label for="username">用户名：</label> <input type="text" id="username" name="username"> <label for="password">密码：</label> <input type="password" id="password" name="password"> <button type="submit">登录</button> </form> </body> </html> 可以帮我美化一下布局吗

<button type="submit">登录</button> </div> </form> </div> </body> </html> 在这个示例中，我给容器添加了一个名为 .login-container 的类，并为其设置了一些样式，包括背景颜色、内边距、边框半径等。...

帮我找出这段代码的错误并给出正确答案<html> <head> <meta charset="utf-8" /> <title>学生成绩管理系统</title> </head> <body> 学生成绩管理系统 <form action="./server/user_server.php" method="post"> 用户名: <input type="text" name="account"> 密码: <input type="password" name="password"> <button type="submit">登录</button> <?php echo isset($_GET['message']) ? $_GET['message'] : ""; ?> </form> </body> </html>

<td><button type="submit">登录</button></td> <td> <span> <?php echo isset($_GET['message']) ? $_GET['message'] : ""; ?> </span> </td> </tr> </table> </form> ...

<?php // 数据库连接参数 $host = "localhost"; $username = "root"; $password = "123456"; $dbname = "itcast"; // 连接数据库 $db = new PDO("mysql:host={$host};dbname={$dbname}", $username, $password); // 查询员工列表 $sql = "SELECT * FROM employees"; $stmt = $db->prepare($sql); $stmt->execute(); $employees = $stmt->fetchAll(PDO::FETCH_ASSOC); // 输出员工列表 echo ""; echo "ID姓名性别入职日期地址电话"; echo ""; foreach ($employees as $employee) { echo "{$employee['id']} {$employee['name']} {$employee['gender']} {$employee['hire_date']} {$employee['address']} {$employee['phone']} "; } echo ""; echo ""; ?>添加一个更改按钮

echo "<td><button onclick='editEmployee({$employee['id']})'>更改</button></td></tr>"; } echo "</tbody>"; echo "</table>"; ?> <script> function editEmployee(id) { // 弹出一个对话框来更改员工信息 //...

<?php // 连接数据库 $conn = new mysqli("localhost", "root", "123456", "wyya"); // 检查连接是否成功 if ($conn->connect_error) { die("连接失败: " . $conn->connect_error); } // 查询数据 $tables = array("one_list", "two_list", "three_list", "four_list", "five_list"); $data = array(); foreach ($tables as $table) { $sql = "SELECT * FROM " . $table; $result = mysqli_query($conn, $sql); if ($result->num_rows > 0) { while ($row = $result->fetch_assoc()) { $row['语种'] = substr($table, 0, -5); // 获取语种名称 $data[] = $row; } } } // 渲染 HTML 模板 ?> <!DOCTYPE html> <html> <head> <title>网易云音乐歌单</title> <style> table { border-collapse: collapse; width: 100%; } th, td { text-align: left; padding: 8px; } tr:nth-child(even) { background-color: #f2f2f2; } th { background-color: #4CAF50; color: white; } .language-button { background-color: #f2f2f2; padding: 8px 16px; border: none; cursor: pointer; display: inline-block; margin-right: 10px; } .chinese { color: #e60000; } .english { color: #0066cc; } .japanese { color: #ff9900; } .korean { color: #3385ff; } .cantonese { color: #009933; } </style> </head> <body> 网易云音乐歌单 <form method="get" action=""> <input type="hidden" name="table" value="<?php echo $tables[0]; ?>"> <button type="submit" class="language-button chinese">华语</button> </form> <form method="get" action=""> <input type="hidden" name="table" value="<?php echo $tables[1]; ?>"> <button type="submit" class="language-button english">英语</button> </form> <form method="get" action=""> <input type="hidden" name="table" value="<?php echo $tables[2]; ?>"> <button type="submit" class="language-button japanese">日语</button> </form> <form method="get" action=""> <input type="hidden" name="table" value="<?php echo $tables[3]; ?>"> <button type="submit" class="language-button korean">韩语</button> </form> <form method="get" action=""> <input type="hidden" name="table" value="<?php echo $tables[4]; ?>"> <button type="submit" class="language-button cantonese">粤语</button> </form> <?php if (!empty($data)) { ?> 歌单名歌单地址歌曲量播放量收藏量评论量分享量创建者创建时间 <?php foreach ($data as $row) { ?> <?php echo $row['歌单名']; ?> <?php echo $row['歌单地址']; ?> <?php echo $row['歌曲量']; ?> <?php echo $row['播放量']; ?> <?php echo $row['收藏量']; ?> <?php echo $row['评论量']; ?> <?php echo $row['分享量']; ?> <?php echo $row['创建者']; ?> <?php echo $row['创建时间']; ?> <?php } ?> <?php } else { ?> 暂无数据 <?php } ?> </body> </html> <?php // 关闭连接 $conn->close()0>修改代码，通过点击按钮展示出对应的单个歌单

></button> </form> <?php } ?> </div> </div> <?php if (!empty($data)) { ?> <table> <tbody> <tr> <th>歌单名</th> <th>歌单地址</th> <th>歌曲量</th> <th>播放量</th> <th>收藏量</th> <th>评论量...

找出这串代码的错误并给出正确答案<!DOCTYPE html> <?php session_start(); $order = $_SESSION['cart']; $sum = 0?> <html> <head> <meta charset="UTF-8"> <title>PHP购物</title> </head> <body> 购物车
返回商品列表 <tbale> 商品名售价数量 <?php foreach($order as $key => $value):?> <?php echo $value['name'];?> ¥<?php echo $value['price'];?> - <?php echo $value['num'];?> + <?php endforeach;?> <form action="updCart.php" method="get"> <input type="submit" value="结算"> </form> </body> </html>

php foreach($order as $key => $value):?> <tr> <td><?php echo $value['name'] ?? '';?></td> <td>¥<?php echo $value['price'] ?? '';?></td> <td> <a class="btn" href="updCart.php?upd=0&id=<?php echo ...

找出这串代码的错误并给出正确答案<!DOCTYPE html> <?php $products = array( array("id"=>"1","name"=>"可可芭蕾","price"=>13.00), array("id"=>"2","name"=>"阿华田","price"=>17.00), array("id"=>"3","name"=>"冰淇淋红茶","price"=>8.00), array("id"=>"4","name"=>"百香三重奏","price"=>15.00) ); session_start(); $sum = 0; if(! empty($_SESSION['cart'])) { $order = $_SESSION['cart']; $sum = array_sum(array_column($order, "num")); } ?> <html> <head> <meta charset="UTF-8"> <title>PHP购物</title> </head> <body> 商品列表
商品名售价购物车 <?php foreach ($products as $key => $value);?> <?php echo $value['name'];?> ¥<?php echo $value['price'];?> + <?php endforeach;?> 我的购物车 <?php echo $sum;?> </body> </html>

array("id"=>"1","name"=>"可可芭蕾","price"=>13.00), array("id"=>"2","name"=>"阿华田","price"=>17.00), array("id"=>"3","name"=>"冰淇淋红茶","price"=>8.00), array("id"=>"4","name"=>"百香三重奏",...

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>购物</title> <script type="text/javascript" src="js/script.js"></script> </head> <body> 订单配送至：<?php echo $_POST["address"];?> <?php foreach($order as $key => $value):?> <?php echo $value['name'];?> ￥<?php echo $value['price'];?> x<?php echo $value['num'];?> <?php endforeach;?> 总共<?php echo $num?>件合计￥<?php echo $sum;?> </body> </html> 请给我检查错误

array('name' => '商品1', 'price' => 100, 'num' => 2), array('name' => '商品2', 'price' => 200, 'num' => 1), ); // 计算商品总量和总价 $num = 0; $sum = 0; foreach ($order as $item) { $num += $...

<!DOCTYPE html> <?php require_once('MkEncrypt.php'); MkEncrypt('1234'); //这个就是密码 ?> <html> <head> <meta charset="UTF-8"> <title>GOLA 2.0</title> </head> <style type="text/css"> .wrapper {width: 1000px;margin: 20px auto;} h2 {text-align: center;} .add {margin-bottom: 20px;} .add a {text-decoration: none;color: #fff;background-color: green;padding: 6px;border-radius: 5px;} td {text-align: center;} </style> <body> GOLA 2.0 ID 用户呀手机呀刷新密码总资可用操作 <?php // 1.导入配置文件 require "dbconfig.php"; // 2. 连接mysql $link = @mysql_connect(HOST,USER,PASS) or die("提示：数据库连接失败！"); // 选择数据库 mysql_select_db(DBNAME,$link); // 编码设置 mysql_set_charset('utf8',$link); // 3. 从DBNAME中查询到user数据库，返回数据库结果集,并按照addtime降序排列 $sql = 'select * from user order by id asc'; // 结果集 $result = mysql_query($sql,$link); // var_dump($result);die; // 解析结果集,$row为新闻所有数据，$userNum为新闻数目 $userNum=mysql_num_rows($result); for($i=0; $i<$userNum; $i++){ $row = mysql_fetch_assoc($result); echo ""; echo "{$row['id']}"; echo "{$row['agent_name']}"; echo "{$row['phone']}"; echo "{$row['with_pwd']}"; echo "{$row['user_amt']}"; echo "{$row['enable_amt']}"; echo " 删除 修改 "; echo ""; } // 5. 释放结果集 mysql_free_result($result); mysql_close($link); ?> <script type="text/javascript"> function del (id) { if (confirm("确定删除这条新闻吗？")){ window.location = "action-del.php?id="+id; } } </script> </body> </html> 美化一下页面

echo "<td>{$row['id']}</td>"; echo "<td>{$row['agent_name']}</td>"; echo "<td>{$row['phone']}</td>"; echo "<td>{$row['with_pwd']}</td>"; echo "<td>{$row['user_amt']}</td>"; ...

加粉日期总推广费总加粉数总客户数总订单金额 {volist name="fields" id="fv"} {$fv} {/volist} <?php $n=5; ?> {volist name="time_arr" key="k" id="tv"} {$tv.add_fans_time} {$tv.promotion_fee|default='-'} {$tv.add_fans|default='-'} {$tv.customer_number|default='-'} {$tv.order_money|default='-'} {volist name="fields" id="fsv"} <?php echo isset($tv[$fsv]) ?$tv[$fsv]:'-'; ?> {/volist} {/volist} 将以上代码中的表格前四列固定，剩余部门滚动显示

<div class="fixed-columns"> <table> <tr> <td class="dg">加粉日期</td> <td class="dg">总推广费</td> <td class="dg">总加粉数</td> <td class="dg">总客户数</td> </tr>  </table>...

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