updating a value in a multidimensional array

[Giddy Rob]

Hi,

 

i am creating a shopping cart and am wondering how I can update a value in the array? The reason I want to do this is for the quantity of items the customer would like to buy.

 

As you can see from the code:

$disp="SELECT id, name, description, priceforpaypal, colour FROM portfolio WHERE id='{$_POST['id']}'";
$display=mysql_query($disp);
$displays=mysql_fetch_array($display);

if(empty($_SESSION['items'])){
$_SESSION['items']=array(array($displays[0],$displays[1],$displays[2],$displays[3],$displays[4],"1"));
}//end if

 

The item is added to the session array with the quantity of 1 being added at the end. I have managed to do a search so that it knows if there is a item already in the array with the same id I just don't know what to do to update that record so that the quantity can be changed i.e. +1

 

Cheers in advance guys

 

Rob

[sasa]

try

<?php
// setup $id
$added = false;
foreach ($_SESSION['items'] as $key => $item){
if (in_array($id, $item)){
	$_SESSION['items'][$key][5]++;
	$added = true;
}
if ($added) break;
}
if (!$added) // add new session items
?>