PHP でインタラクティブなフォームを作成: データを取得してユーザーを関与させる

<form method="post" action="submit-form.php">
  <label for="name">姓名：</label>
  <input type="text" id="name" name="name">
  <input type="submit" value="提交">
</form>

<?php
if (isset($_POST['name'])) {
  $name = $_POST['name'];

  // 处理表单数据
}
?>

$name = filter_input(INPUT_POST, 'name', FILTER_SANITIZE_STRING);

$mysqli = new mysqli("localhost", "root", "password", "database");
$mysqli->query("INSERT INTO users (name) VALUES ('$name')");

<form method="post" action="submit-registration.php">
  <label for="name">姓名：</label>
  <input type="text" id="name" name="name">

  <label for="email">电子邮件：</label>
  <input type="email" id="email" name="email">

  <label for="password">密码：</label>
  <input type="password" id="password" name="password">

  <input type="submit" value="注册">
</form>

<?php
// 验证输入
$name = filter_input(INPUT_POST, 'name', FILTER_SANITIZE_STRING);
$email = filter_input(INPUT_POST, 'email', FILTER_SANITIZE_EMAIL);
$password = filter_input(INPUT_POST, 'password', FILTER_SANITIZE_STRING);

// 连接到数据库
$mysqli = new mysqli("localhost", "root", "password", "database");

// 插入数据
$mysqli->query("INSERT INTO users (name, email, password) VALUES ('$name', '$email', '$password')");

// 显示成功消息
echo "您已成功注册！";
?>