解析错误：语法错误，意外的文件结束

Question

我已经检查了其他每一个关于这个问题的帖子，但我真的无法解决这个问题。我一直在调试每一行，问题在于$body（出现错误时）。在这段代码之前，我有一个sql查询将输入字段插入到数据库中，这完全有效。以下代码直接位于其下方。我关闭了每一个括号，每个分号使用但是错误仍然是吐出来的，我不知道为什么。有人可以帮忙吗？

    $to = "example@example.com";
    $subject = "New Course Application Form";
    $body = <<<EOD

        <table cellspacing="0" cellpadding="1" border="1">
            <tbody>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Course: </td>
                    <td style="padding: 5px 10px;">$course</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Firstname: </td>
                    <td style="padding: 5px 10px;">$firstname</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Surname: </td>
                    <td style="padding: 5px 10px;">$surname</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">D.O.B: </td>
                    <td style="padding: 5px 10px;">$DOB</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Gender: </td>
                    <td style="padding: 5px 10px;">$gender</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Address Line 1: </td>
                    <td style="padding: 5px 10px;">$address1</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Address Line 2: </td>
                    <td style="padding: 5px 10px;">$address2</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">City: </td>
                    <td style="padding: 5px 10px;">$city</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Postcode: </td>
                    <td style="padding: 5px 10px;">$postcode</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Mobile Phone Number: </td>
                    <td style="padding: 5px 10px;">$mobile</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Home Phone Number: </td>
                    <td style="padding: 5px 10px;">$home</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Email Address: </td>
                    <td style="padding: 5px 10px;">$email</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">3 Year Residency: </td>
                    <td style="padding: 5px 10px;">$residency</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150">Learning Difficulties: </td>
                    <td style="padding: 5px 10px;">$learning</td>
                </tr>
                <tr>
                    <td style="padding: 5px 10px;" width="150"> Previous Qualifications: </td>
                    <td style="padding: 5px 10px;">$qualifications</td>
                </tr>
            </tbody>
        </table>

    EOD;

    $headers = "From: example@example.com\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=\"iso-8859-1\"\n";
    $headers .= "X-Priority: 1\r\n";
    $headers .= "X-MSMail-Priority: High\n";
    $headers .= "X-Mailer: PHP". phpversion() ."\r\n";

    if (mail($to, $subject, $body, $headers )) {

        echo "Thank you for sending us an enquiry. We will get back to you.";

    } else {

    echo "Please fill in the form fields and try again";
}

header("Location: apply.php");