Hi JB!
On Wed, 10 Jan 2001, JB wrote:
> ok, this all looks good, but then I again I am having a problem figuring out
> that code you wrote below. the code i'm attempting to write isn't going to
> be complex. there's maybe 10 or 15 items going to be sold. it would be very
> rare if the customer ever had 1 or 2 things in their basket, let alone more
> than that. i think i'm looking for a simpler solution. from what i had read,
> though i couldn't get to work, this would be an acceptable method of
> starting a sessions and trapping the variables without a million
> session_register calls.
>
> session_start();
> session_register("sessvar");
> $sessvar["user"]["name"] = $login_name;
> $sessvar["cart"]["item1"] = $prod_id;
> $sessvar["cart"]["qty1"] = $qty;
>
> Then.. I should be able to access them like:
>
> print "$sessvar['user']['name']";
> etc...
>
yap, just like that!
have you tried it yet?
Just remember to test if the array variable isn't already set so not to
overwrite the old values by accident (use session_is_registered(), I think)
> all i need is a sure fire way to easily hold a few variables throughout the
> site. i'm not concerned about holding the keys in a db, as with the small
> activity on this site, and the fact the writing to a local file will not
> rpoduce any noticable difference over a db query on my machine w/ its
> traffic, the db is not needed for this.
>
My advice is to have a clear idea of what you really want, and write it down
first. Clearely formulate your problem to solve, and don't jump at coding as
most guru coders do :) Start simple.
> so.. all i need is a good simple method to register the following variables:
> uid (user id)
> p1 (product id for item 1)
> q1 (qty for item 1)
>
[products.php] [cart.php]
{uid, product_id, quantity} ---> {$cart, $user}
in cart.php you do:
session_start();
// don't mix different data (products w/ user data)
// have them in separate entities
if (!session_is_registered('cart')) {
$cart = array();
session_register('cart');
}
if (!session_is_registered('user')) {
$user = array();
session_register('user');
}
// you may have different operations on the cart.
// let's say we add something, so we receive {uid,product_id, quantity}
// from products.php
...
$cart[$product_id] = $quantity;
I am not sure why do you need user id, as every session is `customized' for a
user, who has a corresponding session_id in your application.
> and a method to increase the next variable to p2, q2, p3,q3 etc to represent
> other items in the cart.
for this example, I thought the `key' in the array to be the product_id (a user
can have one or more products identified by their id).
> i think i should be able to figure out how to manipulate/extract the data
> and work with it from there (in an array) once i am able to get them
> registered. really i would just need a method for walking through the
> array(s) to pull out the data. but if anyone has any suggestions on that too
> i'd love to hear em.
You must view it this way when writing your php code for the problem:
you have a session associated with a user (1 to 1 relationship) in which you
store pertinent data related to users actions. We call it session because it
persists over several requests.
A user can request one or more products (a 1 to n relationship), and the
information will be stored in the session. Simple, isn't it? :)
cheers,
-- teodor
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
