arrays and sessions

[raptor30506090]

Hi guy could any the point me in the right direction:

 

Im trying to build my first shopping cart but stuck at the start i now im going to use sessions this is what i have.

 

if (!isset($_session['cart'])) $_SESSION["cart"]= '$id' ;
if (isset($_POST['id']) &&!empty($_POST['id']) && isset($_POST['cost']) &&!empty($_POST['cost']))  {


$id = $_POST['id'];
$cost = $_POST['cost'];

$item = array($id => $cost);

$_SESSION['cart']=$item;


foreach($_SESSION['cart'] as $key => $cost){
                                      echo $key . ' '. $cost;
 }
} 

echo '<pre>'; 
print_r($_SESSION); 
echo '</pre>';						 

 

the question is i have the id and the  cost  from the form but in the cart array how do i add to the cost each time button pressed

 

Many thanks 

[dawsba]

not 100% sure what you mean

 

are you looking to have an add qty button to add multiple items, perhaps ajax?

 

or a refresh each time they click add item: in which case i would structure your session array alittle different and add qty to the fields ie:

 

  if (!isset($_session['cart'])) $_SESSION["cart"]= '$id' ;

  if (isset($_POST['id']) &&!empty($_POST['id']) && isset($_POST['cost']) &&!empty($_POST['cost']))  {

$id = $_POST['id'];
$cost = $_POST['cost'];

if($_SESSION['cart'][$id][qty]>0)
{
  $_SESSION['cart'][$id][qty]++;
}
else
{
  $_SESSION['cart'][$id][cost]=$cost);
  $_SESSION['cart'][$id][qty]=1;
}


foreach($_SESSION['cart'] as $key => $arr){
                                      echo $key . ' '. $arr[cost].' '.$arr[qty].' TOTAL:$pound;'.number_format($arr[qty]*$arr[cost],2));
 }
} 

echo '<pre>'; 
print_r($_SESSION); 
echo '</pre>';