Re: [PHP] Session for creating a unique shopping cart for each user

From: Gareth Williams (gareth_at_venditor.com)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 15:48:59 +0100
To: php-general@lists.php.net

Have you already sent anything to the browser? Once the first echo has
been performed, you can't send header information, as the header is
sent with the first bit of text.

On Friday, Oct 31, 2003, at 15:47 Europe/Amsterdam, Tore E. Mackay
wrote:

> Hi,
>
> I am creating a shopping cart but experiensing some difficulty in
> creating
> unique shopping carts for each user. When I try to create a session I
> get
> this error message:
> Warning: session_start(): Cannot send session cookie - headers already
> sent
>
> This is the code:
> if(isset($_COOKIE["cartId"]))
> {
> return $_COOKIE["cartId"];
> }
> else
> {
> session_start();
> session_register("cartId", session_id(), time() + ((3600 * 24) * 30));
> return session_id();
> }
>
> If I remove the session_start() and session_register it works fine,
> but then
> everyone uses the same cart and that can't be good.
>
> Thanx!!!
>
> Regards
> Tore
>
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