fatal error

joyce posted this at 08:30 — 22nd August 2002.

Joined: Nov 2001

hi, how do i solve this error?

Fatal error: [] operator not supported for strings in /home/katrinbj.com/htdocs/shop_cart/user_cart.php on line 78

line 78 is this line:

<?php
$_SESSION['pid'][] = $HTTP_POST_VARS['pid']['pid'];
?>

no error when i run in local host , when i upload in server only got this error.
i store pid as session and when user click the pid, it will store in user cart, i do it in a way tat no matter how many times user click on the item, only one pid will be in the cart.

<?php
if (isset($HTTP_POST_VARS['pid']['pid'])) 
    {
        if (is_array($_SESSION['pid']))
        {
            if (!in_array($HTTP_POST_VARS['pid']['pid'], $_SESSION['pid']))
            {
                //echo $HTTP_POST_VARS['pid']['pid'].\"here\";
                $_SESSION['pid'][] = $HTTP_POST_VARS['pid']['pid'];
            }    
        }else
        {
            $_SESSION['pid'][] = $HTTP_POST_VARS['pid']['pid'];
        }
    }
?>

first time click is fine, but when i click the product once again, i got tat fatal error....how can i solve it?? pls advice. thanks.

Mark Hensler posted this at 19:54 — 22nd August 2002.

He has: 4,048 posts

Joined: Aug 2000

I'm not sure what's causing that error.

<?php
if (!in_array($HTTP_POST_VARS['pid']['pid'], $_SESSION['pid']))
{
    //echo $HTTP_POST_VARS['pid']['pid'].\"here\";
    $_SESSION['pid'][] = $HTTP_POST_VARS['pid']['pid'];
}


// that is the hard way to force a unique PID
// it's easier to just put everything into your array,
// then use array_unique()
$_SESSION['pid'][] = $HTTP_POST_VARS['pid']['pid'];
$_SESSION['pid'] = array_unique($_SESSION['pid']);
?>

PHP Doc: array_unique()

Mark Hensler
If there is no answer on Google, then there is no question.

joyce posted this at 00:38 — 23rd August 2002.

They have: 164 posts

Joined: Nov 2001

tried the array_unique(), still getting the same error...