Finn felet på denna PHPkod

Finn felet på denna PHPkod

<?php
if (isset($_POST)) {
$headers = 'From: [email protected]' . "\r\n" . 'Reply-To: [email protected]' . "\r\n" . 'X-Mailer: PHP /' . phpversion();

$till = "[email protected]"; $nyhetsbrev = $_POST;
$namn = $_POST;
$efternamn = $_POST;
$personr = $_POST;
$adress = $_POST;
$postort= $_POST;
$postnr= $_POST;
$postnr= $_POST;
$postnr= $_POST;
$rubrik = "Beställning.";


$msg = "{$nyhetsbrev}";
$msg = "{$namn}";
$msg = "{$efternamn}";
$msg = "{$personr}";
$msg = "{$adress}";
$msg = "{$postort}";
$msg = "{$postnr}";
$msg = "{$antal}";
$msg = "{$epost}";
mail($till, $rubrik, $msg, $headers);

}
?>
<form action="<?php $_SERVER; ?>" method="post">
Förnamn<IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="3" BORDER=NO>
<input type="text" name="namn" size="20"><br>
Efternamn<IMG SRC="IMAGES/spacer.gif" width="5" BORDER=NO>
<input type="text" name="efternamn" size="20"><br>
Personnr<IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="3" BORDER=NO>
<input type="number" name="personr" size="20" maxchars="10"><br>
Adress<IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="5" BORDER=NO>
<input type="text" name="adress" size="20"><br>
Postort<IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="3" BORDER=NO>
<input type="text" name="postort" size="20"><br>
Postnr<IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="7" BORDER=NO>
<input type="text" name="postnr" size="20" maxchars="5"><br>
Antal konstbrickor
<input type="text" name"antal" size="20"><br>
<br>Epost
<input type="text" name="epost" size="20"><IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><IMG SRC="IMAGES/spacer.gif" width="10" BORDER=NO><br>
<input type="submit" value="Skicka" onclick="alert('Din beställning är nu klar.');">