联系表不起作用:通知:未定义索引:消息

Contact form not working: Notice: Undefined index: message

我无法使用我的联系表并将消息转发到邮件。

我在提交消息时收到以下消息:

截图:

据我所知它应该工作正常。此外,我使用了 Materialise CSS。回声消息是丹麦语的(不要介意那些),它们只打印 "Thanks for your message" 和 "Error"。

    <?php
     $name = $_POST['name'];
     $email = $_POST['email'];
     $message = $_POST['message'];
     $formcontent = "Fra: $name \n Besked: $message";
     $recipient = "mail@mail.com";
     $subject = "Kontaktformular";
     $mailheader = "Fra: $email \r\n";
     mail($recipient, $subject, $formcontent, $mailheader) or die("Fejl!");
     echo "Tak for din besked!";
    ?>


  <div class="container">

    <div class="row">
      <form action="mail.php" method="POST" class="col s12">
        <div class="row">

          <div class="row">
            <div class="input-field col s6">
                <input  id="name" type="text" class="validate">
                <label for="name">Navn</label>
            </div>
            <div class="input-field col s6">
                <input id="email" type="text" class="validate">
                <label for="email">E-mail</label>
            </div>
          </div>

          <div class="row">
            <div class="input-field col s12">
              <textarea id="message" class="materialize-textarea"></textarea>
              <label for="message">Besked til Safemove</label>
            </div>
          </div>

          <div class="row">
            <div class="col m12">
              <button class="btn waves-effect waves-light background-orange" type="submit" name="action">Send besked
                <i class="material-icons right">send</i>
              </button>
            </div>
          </div>

        </div>
      </form>
    </div>
  </div>

您的所有输入字段中都缺少 name attribute

<input  id="name" name="name" type="text" class="validate">
..                ^^^^^^^^^^          
 <input id="email" name="email" type="text" class="validate">
..
 <textarea id="message" name="message" class="materialize-textarea" > </textarea>

注意: 不带 name attributes 的输入将被忽略,值不会发送到服务器。