php Formail script using phpmailer functions

That if you don't have perl's FormMail installed or
there is no sendmail (in a chroot cage for example)

/**
 * Formail script using smtp functions (Work done by Marius Popa aka mariuz)
 * copyright under GPL
 * http://www.gnu.org/copyleft/gpl.html
 * Read it before stealing my code ;)
 **/
require("class.phpmailer.php");
$body="";
$from="forms@example.com";
$subject=$_POST[subject];
$recipient="foo@example.com"
#$_POST[recipient];
$server="smtp.example.com";
$port="25";


 // array for allowed domains (lower case please)
 $referers = array('example.com', 'www.example.com');
 $HttpsProtocol=$HTTP_SERVER_VARS['HTTPS'];
// add upper case referrers
$size = sizeof($referers);
for($i = 0; $i < $size; $i++){
 $referers[] = strtoupper($referers[$i]);
}

// check referers
for($i = 0; $i < sizeof($referers); $i++){
if(substr($HTTP_SERVER_VARS['HTTP_REFERER'], 7, strlen($referers[$i])) == $referers[$i]){
   $bad_referer = FALSE;
   break;
 } //if we are on https connection check if it's a good guy (not a bad referer)
elseif ($HttpsProtocol=="on"){
  if(substr($HTTP_SERVER_VARS['HTTP_REFERER'], 8 , strlen($referers[$i])) == $referers[$i])
  {
     $bad_referer = FALSE;
     break; 
  }
}else {
    
    $bad_referer = TRUE;
    }

}
if($bad_referer){
header('Location: bad_referer.php');
//echo "Bad Referer :$HTTP_SERVER_VARS['HTTP']";
exit;
}

 
 if ($HTTP_POST_VARS) 
 { 
 while (list($lvar, $lvalue) = each($HTTP_POST_VARS)) 
 {
  $body=$body."$lvar=$lvalue |";
 }
 }
 
$mail = new  PHPMailer();
$mail->From = $from;
$mail->FromName = "Form";
$mail->Host = $server;
$mail->Mailer = "smtp";


$mail->AddAddress($recipient); 
$mail->Subject = $subject; 
$mail->Body = $body;
$mail->IsHtml(true);
$mail->Send(); 

if(isset($HTTP_POST_VARS['redirect']) && ($HTTP_POST_VARS['redirect']!="")) {
 $redirect_url=$HTTP_POST_VARS['redirect'];
 header("Location: $redirect_url");
}
else {
 print "Thank you for submiting the folowing request"; 
 echo "$body";
}
?>

php::..::linux