Hey all. I have a cookie being set when a user logs in and when they logout the cookie is supposed to be ended.

Here is the start (login):

PHP Code:

//Collect the details and validate 
    $time = time();  
    $pass = md5($password);  
    $sql = mysql_query("SELECT * FROM members WHERE username='$username' AND password='$password'") or die(mysql_error()); 
    $count = mysql_num_rows($sql); 
     
    if ($count > 0) 
    { 
        $cookie_data = $username.'-'.$pass;   

    setcookie ("cookie_info",$cookie_data, $time+1800); 

    header("Location: home.php"); 


And the end (logout):

PHP Code:

<?php 
$time = time(); 

if (isset($_COOKIE['cookie_info'])) 
{ 
  setcookie ("cookie_info", "", $time - 1800);
?>
<font face="Verdana" size="2" color="FF0000"><?php echo "Logged Out"; ?></font> 
<?php
} 
?>

I got this from phpfreaks.com when I first started learning php. But the cookie doesn't seem to end and doesn't log out th user.

Anyone able to help?

Thanks in advance,

Manson

Common problems for cookies which I think may apply here:

1. Set cookie in doc root and trying to delete it from a sub directory.
   SOLUTION: Use path argument:
   setcookie ("cookie_info", "", $time + 1800, "/");
   
   
2. Clocks off. Server clock and client clock not in sync. Very common. Do to this it is very hard to use short lived cookie without implement a sessions type solution.
   SOLUTION: Use really big difference like 24+ hours when deleting:
   setcookie ("cookie_info", "", 1, "/");

Some browser just don't handle cookies very well like IE 4.x or late Netscape 4.X.