我是否可以使用PHP从表单发送数据并选择下拉到电子邮件？

<form action="process.php" method="post">
  <label for="name">姓名：</label>
  <input type="text" id="name" name="name" required><br><br>
  
  <label for="email">电子邮件：</label>
  <input type="email" id="email" name="email" required><br><br>
  
  <label for="message">消息：</label>
  <textarea id="message" name="message" required></textarea><br><br>
  
  <label for="priority">优先级：</label>
  <select id="priority" name="priority">
    <option value="低">低</option>
    <option value="中">中</option>
    <option value="高">高</option>
  </select><br><br>
  
  <input type="submit" value="提交">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $name = $_POST["name"];
  $email = $_POST["email"];
  $message = $_POST["message"];
  $priority = $_POST["priority"];
  
  // 构建邮件内容
  $to = "your-email@example.com";
  $subject = "新消息 - 优先级: " . $priority;
  $body = "姓名: " . $name . "\n";
  $body .= "电子邮件: " . $email . "\n";
  $body .= "消息: " . $message;
  
  // 发送邮件
  mail($to, $subject, $body);
  
  echo "邮件已发送！";
}
?>