problem in shopping cart.

[rahia307]

i developed session based shopping cart. using this code.

	$_SESSION['cart'][]= array( 'prd_name' => $prd_name, 'unit_price' => $unit_price,
	'qty' => $qty, 'id_prd' => $id_prd);

and i use this code to display values placed in session.

foreach($_SESSION['cart'] as $key=>$value){
echo $value['prd_name'];
echo $value['qty'];
}

Now my question is that. How can i update values placed in a session. i other words how can i update my shopping cart

[Markus]

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