联系表单到电子邮件的PHP脚本

我在联系表格中使用以下PHP脚本将查询发送到我的电子邮件地址。我使用XAMP进行了测试，但没有收到任何电子邮件。这是因为它正在本地主机上测试，还是我的代码有问题？请看下面，让我知道，因为你可以告诉我，我是非常新的PHP。

谢谢，

乔。

   <?php
    if(isset($_POST['email'])) {
    // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "angliojoe@gmail.com";
    $email_subject = "eMail enquiry";

     function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted.         ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }
    // validation expected data exists
    if(!isset($_POST['first_name']) ||
        !isset($_POST['email']) ||
        !isset($_POST['telephone']) ||
        !isset($_POST['comments'])) {
        died('We are sorry, but there appears to be a problem with the form you   submitted.');       
    }
    $first_name = $_POST['first_name']; // required
    $email_from = $_POST['email']; // required
    $telephone = $_POST['telephone']; // not required
    $comments = $_POST['comments']; // required
    $error_message = "";
    $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+'.[A-Za-z]{2,4}$/';
  if(!preg_match($email_exp,$email_from)) {
    $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
  }
    $string_exp = "/^[A-Za-z .'-]+$/";
          if(!preg_match($string_exp,$first_name)) {
           $error_message .= 'The First Name you entered does not appear to be valid.<br />';
  }
         if(strlen($comments) < 2) {
          $error_message .= 'The Comments you entered do not appear to be valid.<br />';
  }
           if(strlen($error_message) > 0) {
           died($error_message);
  }
           $email_message = "Form details below.'n'n";
        function clean_string($string) {
          $bad = array("content-type","bcc:","to:","cc:","href");
          return str_replace($bad,"",$string);
        }
        $email_message .= "First Name: ".clean_string($first_name)."'n";
        $email_message .= "Email: ".clean_string($email_from)."'n";
        $email_message .= "Telephone: ".clean_string($telephone)."'n";
        $email_message .= "Comments: ".clean_string($comments)."'n";

    // create email headers
    $headers = 'From: '.$email_from."'r'n".
     'Reply-To: '.$email_from."'r'n" .
    'X-Mailer: PHP/' . phpversion();
    @mail($email_to, $email_subject, $email_message, $headers);  
    ?>
    <!-- include your own success html here -->
     Thank you for contacting us. We will be in touch with you shortly.
     <?php
     }
     ?>