Cookies don't set

[GrimKid429]

I am making a login and i am including cookies but my cookies won't set what do i do? this is the code i am using:

<?php
include("db.php");

if(!isset($username) || !isset($password)) {
echo '<script>window.location.href= "http://members.lycos.co.uk/grimproductionteam/index.php?id=login.html"</script>';

}

elseif (empty($username) || empty($password)) {
echo '<script>window.location.href= "http://members.lycos.co.uk/grimproductionteam/index.php?id=login.html"</script>';

}

else{

$user = addslashes($POST['username']);
$pass = md5($POST['password']);

$db = mysql_connect("$dbHost", "$dbUser", "$dbPass") or die (mysql_error());

mysql_select_db("$dbDatabase", $db) or die (mysql_error());

$result=mysql_query("SELECT * FROM users WHERE username='$user' AND password='$pass'", $db);

$rowCheck = mysql_num_rows($result);
if($rowCheck > 0){
while($row = mysql_fetch_array($result)){

setcookie("user[]", $username,time()+5000);
if(empty($HTTP_COOKIE_VARS["user"])) {
echo "Welcome, $username";
}
}

}
else {

echo 'Incorrect login name or password. Please try again.';
}
}
?>

[searain]

are you setting up array as cookie?

I don't think you can do that. At least, I have the same problems before by tryng to set up array as cookie.

I think you need to serialize array to a string value and save that string value as cookie. When you are going to use that cookie value, unserialize it back to array.

[GrimKid429]

Forget about cookies i want to use sessions now how do you carry over a variable from one page to another page without using a form and an input button and without using the header() function

[GrimKid429]

Forget about cookies i want to use sessions now how do you carry over a variable from one page to another page without using a form and an input button