联系表单访问php脚本时遇到问题

我正在尝试配置我的"发送消息/提交"按钮，以便在单击时访问本地目录中的php文件并执行代码以通过电子邮件发送相应的数据。

布局

HTML代码显示以下内容：

   <section class="contact-us">
    <div class="form-wrapper">
        <div class="contact-form">
            <form>
                <fieldset>
                    <div class="control-group">
                        <input id="Field12" name="Field12" placeholder="Full Name" required="" tabindex="1" type="text" value="">
                    </div>
                    <div class="inline-groups">
                        <div class="control-group">
                            <input id="Field3" maxlength="255" name="Field3" placeholder="Email" required="" spellcheck="false" tabindex="2" type="email" value="">
                        </div>
                        <div class="control-group">
                            <input id="Field4" maxlength="255" name="Field4" placeholder="Phone number (optional)" tabindex="3" type="tel" value="">
                        </div>
                    </div>
                    <div class="control-group">
                        <textarea cols="50" id="Field5" name="Field5" placeholder="Let us know what we can do for you!" spellcheck="true" tabindex="4"></textarea>
                    </div>
                    <input id="idstamp" name="idstamp" type="hidden" value="r885sYVzp1O8HO4V4MdnZvkis7E3NZIfZ8CtHRCtCdY">
                    <button class="button" action="send_form_email.php" type="submit">Send message</button>
                </fieldset>
            </form>

PHP代码显示如下：

<?php 
if(isset($_POST['email'])) { 
    // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "matty65622@hotmail.com";
    $email_subject = "Greenmount Engineering | Customer 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($_POST['name']) ||
        !isset($_POST['email']) ||
        !isset($_POST['tel']) ||
        !isset($_POST['comments'])) {
        died('We are sorry, but there appears to be a problem with the form you submitted.');       
    }

    $name = $_POST['name']; // required
    $email_from = $_POST['email']; // required
    $telephone = $_POST['tel']; // 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($string_exp,$name)) {
    $error_message .= 'The name you entered does not seem 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);
    }

    $email_message .= "Name: ".clean_string($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 very soon.

<?php
}
?>

我不确定这段代码是否能100%工作，因为我还没有尝试过，但正如你所看到的，将HTML按钮链接到php脚本的尝试只会在发送时刷新页面，但当我检查电子邮件时，什么都没有通过。<button class="button" action="send_form_email.php"