array manipulations

[frown]

okay, okay
i know this topic was hammered to death already
but still the PHP docs are VERY user-unfriendly when coming to compulsory and detailed explanations/examples...

i'm doing some small session-based shopping cart. what i need is to define a two-dimensional array ($cart for example) then pass a pairs of values to it ($item and $count, respectively, in conjunction), then i'll check the array for the duplicates of items and increase their $count values, then i'll end up getting the correct price values from mysql database and sum up the shopping cart.

okay, what the init/put/get strings for my $cart array would look like ? list() and each() just won't work for me cause i'm a no guru in the php syntax.

see:

---

if($item) $cart[] =

need to assign a pair of values here

----------
while(list($pos,$val)=each($cart))
{echo "$pos=>$val<br>";}

^{^^^^} need to retrieve a pair of values here, not the pos/value, but actual item/count pair.

ideas ?

[neuromancer]

Why don't you make item the index for your array.

(Item should be a unique to the item ID from your database if possible)

Then your code would look something like this

if(isset($cart[$item])) {
$cart[$item][QUANTITY]++;
} else {
$cart[$item]=array(
"QUANTITY" => 1,
"Anything else you need to track?" => ""
);
}

[frown]

well i'm a dummie i guess 🙂
no parse errors, but now it's a problem to get the values out of the array...

probably i just simpy don't understand how to manipulate arrays at all - well i thought something seems weird for my weakening mind cause well... several years ago it was c++ and everything seemed just all right and now ba-ah i see some brackets and commas and everything is very familiar but something's really wrong... maybe lack of documentation.

well i can't tell how to get the values out or delete some 🙂