if(isset($_COOKIE["cartId"]))
{
return $_COOKIE["cartId"];
}
else
{
// There is no cookie set. We will set the cookie
// and return the value of the users session ID
session_start();
setcookie("cartId", session_id(), time() + ((3600 * 24) * 30));
return session_id();
}
http://www.devarticles.com/c/a/MySQL...P-and-MySQL/2/
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