Javascript HTML表单可以'；不要发送到PHP文件

我在我的网站上有一个联系表，我想发送到一封电子邮件，我把它设置在“onsubmit”的位置，它将发送到一个js函数，并检查是否所有输入都已填写。然后，转到我的php文件。然而，在我点击提交后，它说，“这个页面不工作”。我的JS函数工作得很好，只是我的php没有

contact.html

  <p id="required">Required <span style="color: red;">*</span></p>
  <script src="js/formvalidate.js"></script>
  <form class="contact-form" name="form" action="php/contact.php" onsubmit="return formValidate()" method="post">
    <label for="first_name" id="label_first" class="contact-label">First Name<span class="asterisk" id="required_fname"></span></label><br>
    <input type="text" id="first_name" name="first_name" class="contact-input" placeholder="First Name"><br>
    <label for="last_name" id="label_last" class="contact-label">Last Name<span class="asterisk" id="required_lname"></span></label><br>
    <input type="text" id="last_name" name="last_name" class="contact-input" placeholder="Last Name"><br>
    <label for="email" id="label_email" class="contact-label">Email<span class="asterisk" id="required_email"></span></label><br>
    <input type="email" id="email" name="email" class="contact-input" placeholder="Email"><br>
    <label for="subject" id="label_subject" class="contact-label">Subject<span class="asterisk" id="required_subject"></span></label><br>
    <input type="text" id="subject" name="subject" class="contact-input" placeholder="Subject"><br>
    <label for="message" id="label_message" class="contact-label">First Name<span class="asterisk" id="required_message"></span></label><br>
    <textarea id="message" name="message" class="contact-message" placeholder="Type here..."></textarea><br>
    <button type="submit" id="submit" name="submit" class="submit">Submit</button>
  </form>

contact.php

<?php

  if (isset($_POST['submit'])) {
      $fname = $_POST['first_name'];
      $lname = $_POST['last_name']
      $subject = $_POST['subject'];
      $mailFrom = $_POST['email'];
      $message = $_POST['message'];

      $mailTo = "database@terrytowell.com";
      $headers = "From: ".$mailFrom;
      $name = $fname . " " . $lname;
      $txt = "You have received an Email from " . $name . "\n\n" .$message;

      mail($mailTo, $subject, $txt, $headers);
      header("Location: ../contact.html?mailsend");
  }

?>

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这行代码可以帮助您：

首先在您的函数旁边插入此函数

function send_mail($to, $from, $title, $message) {

    $headers = "From: " . strip_tags($from) . "\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

    mail($to, $title, $message, $headers);
}

然后在变量后面调用它

send_mail($_POST['receiver-email'], $_POST['title(maybe website email)'], "title", "here some other post data from your choice"));

---

如果验证函数成功，您需要返回一个值“My JS function works Perfect”。不，您的函数永远不会返回true。

此页面不工作

是一个常见的PHP错误。您需要查看服务器错误日志，找出它抛出错误的原因。我猜是

$lname=$\u POST['last\u name']

结尾缺少的分号可能只是一句警告的重复。处理POST请求和发送电子邮件的PHP代码在检查提供的数据方面几乎没有什么作用——客户端验证代码很容易被否定，元素上的属性被修改，然后PHP就会失败。

send_mail($_POST['receiver-email'], $_POST['title(maybe website email)'], "title", "here some other post data from your choice"));