should i use session or cookie for shopping cart?

[eclipsevtb]

I'm building a website (low trafffic) which only sells 2 products. I haven't been asked to store user's address for return visit.

I used session and didn't have any problem so far but heard about session costs a lot of sys resources. Should I use cookie instead?

I use unset() to remove a session variable. Is that a correct way to do so?

Thanks in advance.

[bogu]

eclipsevtb wrote:

I haven't been asked to store user's address for return visit

U haven't been asked or u have been asked?
If u have been asked then u cant do this with session because when u close your browser u loose your session, so u need to use cookie ....

eclipsevtb wrote:

I use unset() to remove a session variable. Is that a correct way to do so?

There is also session_destroy(); and unset is ok too ...

[eclipsevtb]

bogu wrote:

U haven't been asked or u have been asked?
If u have been asked then u cant do this with session because when u close your browser u loose your session, so u need to use cookie ....
There is also session_destroy(); and unset is ok too ...

I'm not required to store user's preference for return visit. Should I use cookie for shopping cart?

Can I modify the content of cookie anyway?

[bogu]

eclipsevtb wrote:

I'm not required to store user's preference for return visit. Should I use cookie for shopping cart?

Then use sessions ...

eclipsevtb wrote:

Can I modify the content of cookie anyway?

Yes u can.

[leatherback]

personally I'd use sessions, and store critical data in a database/file