Re: [PHP] Can't remove an element from an array

[John Nichel]

Brian Dunning wrote:

Hi, I have an array that holds the item_id's for a shopping cart. I am 
trying to remove the item specified by a GET like this:

foreach ($_SESSION["cart_array"] as $item) {
  if ($item==$_GET["item_id"]) {unset($_SESSION["cart_array"], $item); 
break;}
}

But it removes ALL items from the cart. And then when I view the cart on 
the next page, EVERYTHING is back, including the item I tried to remove. 
What am I doing wrong? Thanks!

- Brian

Because you're unsetting the WHOLE 'cart_array'.  If you're 'cart_array' 
is set up like this....

Cart ->
        Item0 ->
                stuff
                stuff
        Item1 ->
                stuff
                stuff
        Item2 ->
                stuff
                stuff
And someone wants to delete Item1 from their cart....

unset ( $_SESSION['cart_array']['Item1'] );

http://us4.php.net/manual/en/function.unset.php

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