PHPMailer仅将数据插入空值

Question

我使用了自由的PHPMailer从我的表单发送电子邮件，但是问题是，我希望将键入的数据插入到我的数据库中，这是没有发生的，这是唯一的发生的情况是，它仅插入空值，并且不显示我发出的成功消息。

Php：

<?php
$result="";
if(isset($_POST['submit'])){
    require 'PHPMailer/PHPMailerAutoload.php';
    $mail = new PHPMailer;

    $mail -> Host='smtp.gmail.com';
    $mail->Porto = 587;
    $mail->SMTPAuth = true;
    $mail->SMTPSecure='tls';
    $mail->Username='****';
    $mail->Password='****';

    $mail->setFrom($_POST['EmailReser']);
    $mail->addAddress('filipajoao1933@gmail.com');
    $mail->addReplyTo($_POST['EmailReser']);

    $mail->isHTML(true);
    $mail->Subject='Reversa';
    $mail->Body='<h1>Name:'.$_POST['NomeReser'].'<br>Email:'.$_POST['EmailReser'].'<br>Message: '.$_POST['MensagemR'].'</h1>';

    if(!$mail->send()){
        $result="Something went wrong. Please try again";
    }
    else{
        $result="Thanks".$_POST['NomeReser']."for contacting us. We´ll get back to you soon!";

    }

    $sql = "INSERT INTO Reservas (NomeReser, EmailReser, MensagemR) VALUES ('$Nome','$Email', '$Mensagem')";
    $res=$lig->query($sql);
}

?>