Storing URLS in a cookie

[wwwfilmfilercom]

Hi

Id like a cookie to store a customers recent items viewed.

Im doing this to set the cookie:

setcookie("viewed", "", time()+3600000); 

And then in my list Ive got this:

if (isset($_COOKIE["viewed"])) {
foreach ($_COOKIE["viewed"] as $name => $value)
    {
    echo "$name : $value <br />";
    }
} else {
    echo "no cookies";
} 

If a user clicks on an item it is meant to add the URL of the item to the cookie array list (after making sure its not already there). Im doing this:

if (isset($_COOKIE["viewed"]))
setcookie("viewed[".$mid."]","$mid");
} 

Unfortunately I'm getting the echo statement 'no cookies' so I reckon the setCookie function is wrong, but am I going about this the right way? Ive searched online and not found anything to specifically explain using cookies and then pushing items to the array list.

Can you help?