405 不允许使用用于访问此页面的 HTTP 谓词

405 - 不允许用于访问此页面的 HTTP 谓词。您所在的页面 正在查找无法显示，因为无效的方法 （HTTP 动词）用于尝试访问。

我的网站上有一个小的联系表格，每当我执行它时，这就是我遇到的问题。下面的代码是提交联系表单时操作.php文件。

<?php
if (isset($_POST['email'])) {
    // EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "my email address";
    $email_subject = "Website Email";
    function died($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($_POST['last_name']) ||
        !isset($_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
    $last_name = $_POST['last_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)) {
        $error_message .= 'The First Name you entered does not appear to be valid.<br />';
    }
    if (!preg_match($string_exp, $last_name)) {
        $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
    }
    if (strlen($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";
    $email_message .= "Last Name: " . clean_string($last_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 -->
    I HAVE A PAGE HERE I'VE REMOVED IT FOR THE EASE OF LOOKING AT MY CODE.
    <?php
    unset($_SESSION['errors']);
    unset($_SESSION['fields']);
    ?>
    <?php
}
?>

我已经在 123-reg 的服务器上对此进行了测试并且它可以工作，但是当将其加载到 fasthost 服务器上时，我遇到了这个问题。正确的网址在fasthost下，所以我无法将其放在123-reg服务器上。