[RESOLVED] How to update associative array

[kbc1]

Hi all

I am working on my first online shop system and would like help with the following:

when a user adds items to the basket, I store the data in a session variable as such which works great:-

$_SESSION['mybasket'][$_POST['productid']] = array('quantity' => $_POST['quantity'], 'productprice' => $_POST['productprice']);

Now, in my Basket View page, I want to allow the user to update the quantities as you would expect of each item if they choose to do so, but this is where I am stuck.

For each product item in my array I echo the product details but also a Quantity Field as such:

<input class=\"quantitytext\" name=\"quantity[]\" type=\"text\" value=\"" . $array['quantity'] . "\" />

How would I now update the quantities of each item in the session array when the page is posted?

Thanks for any suggestions.
An Amateur

[buraks78]

Form fields should be generated as such

foreach($_SESSION["mybasket"] as $k=>$v){
    echo "<input type='text' name='quantity_".$k."' value='".$v["quantity"]."'  />";
}

and values can be retrieved as described below (assuming product id is numeric)

foreach($_POST as $k=>$v){
    if(preg_match("/^quantity_([0-9]+)/",$k,$matches)){
        $_SESSION["mybasket"][$matches[1]]["quantity"] = $v;
    }
}

HTH

[kbc1]

Thanks the response, but what is $matches and where should it be created?

[Weedpacket]

kbc1 wrote:

Thanks the response, but what is $matches and where should it be created?

If you look at the manual page for [man]preg_match[/man] you'll see that it is an array that is created by the call to preg_match().

[kbc1]

Unfortunately this method does not seem to be working. Is there any way of simply using the quantity[] array type for my form field as I have it already (explained in the code above)and then update the quantities when the page is posted?

[kbc1]

My apologies - it is working great! Dur.
Thank you for your help and support.