Re: Removing specific array items

Scott Johnson wrote:

In a simple quote cart I track items in a session.

$_SESSION['quote'][##] = {data}

Which increments the ## for each added item.

ISTM you are looking for

$_SESSION['quote'][] = $data;

instead, which automatically increments the index of the item in
$_SESSION['quote']. On the other hand, if the real code was

$_SESSION['quote'][$index] = $items[$index];

you might want to consider simplifying the loop to one statement:

$_SESSION['quote'] = $items;

At the time when the client wants to remove an item from the cart I just
clear the {data} from $_SESSION['quote'][item_id] = '';

Consider

unset($_SESSION['quote'][$item_id]);

instead.

The issue i run into is when I want to display the cart, i just cant
step thru the array without seeing if a particular item is '',

(Please try to work on your spelling.)

which works but would like to find a more 'elegant' way.

After the above, you might want to use

if (!isset($_SESSION['quote'][$item_id])
{
/* Item with $item_id exists */
}

This approach is more precise in combination with is_null().

With all that said, is there a way to remove the item from the array
rather then clear the items data.
^
That is _not_ a question.

I have looked thru the 50+ different array functions and can't seem to
find the right tool. Maybe a combination I am not seeing.

There is:

<http://php.net/unset>
<http://php.net/isset>
<http://php.net/is_null>


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