织梦自定义表单数据库

// 数据库连接
$cfg_dbhost = 'localhost';
$cfg_dbname = 'dedecms';
$cfg_dbuser = 'root';
$cfg_dbpwd = 'password';
$cfg_dbprefix = 'dede_';

$db = new mysqli($cfg_dbhost, $cfg_dbuser, $cfg_dbpwd, $cfg_dbname);

// 表单提交处理
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];

    $sql = "INSERT INTO `dede_customform` (`name`, `email`, `message`) VALUES ('$name', '$email', '$message')";
    if ($db->query($sql) === TRUE) {
        echo "数据提交成功";
    } else {
        echo "数据提交失败: " . $db->error;
    }
}

<!-- 表单模板 -->
<form action="submit.php" method="post">
    <label for="name">姓名：</label>
    <input type="text" id="name" name="name"><br>
    <label for="email">邮箱：</label>
    <input type="email" id="email" name="email"><br>
    <label for="message">留言：</label>
    <textarea id="message" name="message"></textarea><br>
    <input type="submit" value="提交">
</form>