PHP Mail submit表单不刷新

<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>

<form id="emailForm" method="post">
  <label for="name">Name:</label>
  <input type="text" id="name" name="name" required>
  

  <label for="email">Email:</label>
  <input type="email" id="email" name="email" required>
  

  <label for="message">Message:</label>
  <textarea id="message" name="message" required></textarea>
  

  <button type="submit">Submit</button>
</form>
<div id="result"></div>

<script>
  $(document).ready(function () {
    $("#emailForm").submit(function (event) {
      event.preventDefault(); // 阻止表单默认提交行为

      // 获取表单数据
      var formData = $(this).serialize();

      // 发送AJAX请求
      $.ajax({
        type: "POST",
        url: "send_email.php", // 你的PHP邮件处理文件
        data: formData,
        success: function (response) {
          // 更新页面内容
          $("#result").html(response);
        },
        error: function (jqXHR, textStatus, errorThrown) {
          console.log("Error: " + textStatus + " " + errorThrown);
        },
      });
    });
  });
</script>

<?php
// 这里是一个简单的邮件发送示例，你可以根据需要进行修改
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $name = $_POST["name"];
  $email = $_POST["email"];
  $message = $_POST["message"];

  $to = "youremail@example.com";
  $subject = "New Message from " . $name;
  $headers = "From: " . $email . "\r\n" .
             "Content-Type: text/plain; charset=UTF-8";

  mail($to, $subject, $message, $headers);

  echo "Email sent successfully!";
} else {
  echo "Invalid request method.";
}
?>