unknown error

hello. I'm not very good with php and im trying to make a simple login.

this is my code:


Parse error: syntax error, unexpected T_VARIABLE in C:\Program Files\Abyss Web Server\htdocs\forum\login\validate.php on line 15


and this is the error:

<?php

session_start();

//get input data
$user=$_POST["username"];
$pass=$_POST["password"];

//encrypt username and pass
$cuser=md5($user);
$cpass=md5($pass);

//make variables
$ip = $_SERVER['REMOTE_ADDR'];
$userplusip = $user $ip;

//include login file
include($user . ".php");

//make sure info matches and starts session
if ($cuser==$realuser && $cpass==$realpass)
{
$_SESSION["auth_username"] = $user;
$_SESSION["userplusip"] = $userplusip;
header( 'Location: redo.htm' );
}
else
{
header ( 'location: redo.htm' );
}

?>

 

$userplusip = $user $ip; //problem

PHP:

Do this

$userplusip = $user . $ip;

PHP: