Re: [PHP] Session for creating a unique shopping cart for each user
From: Gareth Williams (gareth_at_venditor.com)
Date: 10/31/03
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Date: Fri, 31 Oct 2003 16:12:54 +0100 To: php-general@lists.php.net
Do you see any information in your browser before the error appears?
Perhaps you could also do a view source from the browser to see if
anything has been sent out.
On Friday, Oct 31, 2003, at 16:06 Europe/Amsterdam, Tore E. Mackay
wrote:
> Don't realy know.
>
> Here is what I have:
> 1. An index.php that inculdes products.php if $file=products.php.
> 2. products.php includes db.php that contains databse connection and
> the
> code for creating a session.
> 3. When I click "add product" $file=cart.php and cart.php includes the
> db.php file that should connect me to the db and check if there is a
> session.
>
> It works fine if I go passed the index.php file. Maybe it is because
> the
> index.php file has echoed information. Any idea????
>
> Tore
>
> "Gareth Williams" <gareth@venditor.com> skrev i melding
> news:5C845C18-0BB1-11D8-9384-000A956BB5B4@venditor.com...
>> Have you already sent anything to the browser? Once the first echo
>> has
>> been performed, you can't send header information, as the header is
>> sent with the first bit of text.
>>
>>
>> On Friday, Oct 31, 2003, at 15:47 Europe/Amsterdam, Tore E. Mackay
>> wrote:
>>
>>> Hi,
>>>
>>> I am creating a shopping cart but experiensing some difficulty in
>>> creating
>>> unique shopping carts for each user. When I try to create a session I
>>> get
>>> this error message:
>>> Warning: session_start(): Cannot send session cookie - headers
>>> already
>>> sent
>>>
>>> This is the code:
>>> if(isset($_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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>
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