[Resolved] Multi dimension array help

[micmac]

Hi all,
Having some trouble with storing multi dimensional session arrays.
This what i have so far:

<form action="addtocart_test.php" method="post">
<INPUT name="prod_id" type="hidden" value="<? echo $_GET['prod_id'] ?>">
<INPUT name="qty" type="hidden" value="1">
<INPUT type="submit" name="AddToCart" value="Add to Cart">
</form>

The addtocart.php script looks like:

session_start();

$cart = array($_POST['prod_id'], $_POST['qty']);
$count_array = count($cart); 
$_SESSION['cart'] = $cart; 

for ($i = 0; $i < $count_array; $i++)
{
echo $_SESSION['cart'][$i] . ", ";
}
echo "<br>";	

At the moment this successfully outputs the 'prod_id' and 'qty'.
Now, what i want to be able to do is if the same prod_id is passed, lets say 4 then it will out put something along the lines of:

4, 1, 
4, 1,

I want it to output all of them even if they contain the same prod_id, at the moment it just putputs one.
Do i have to add another dimesion to the existing array?
Or is there another way to do this, maybe add a unigue number at the start of the array...i'm not sure.
This is the basis of a shopping cart script.
Cheers,
micmac

[barand]

Try changing

$cart = array($POST['prod_id'], $POST['qty']);

to

$cart = $SESSION['cart']; # get current contents
$cart[] = array($POST['prod_id'], $_POST['qty']);

[micmac]

Thanks for the reply barand.

i rewrote the code, it now looks like:

session_start(); 

$cart = $_SESSION['cart']; # get current contents 
$cart[] = array($_POST['prod_id'], $_POST['qty']); 
$count_array = count($cart);  

$_SESSION['cart'] = $cart;  

for ($i = 0; $i < $count_array; $i++) 
{ 
echo $_SESSION['cart'][$i] . ", "; 
} 
echo "<br>";

This is adding an extra value to the session array but it is adding "Array" each time. I still can't work out where i am going wrong.
Any more ideas?
Cheers,
micmac

[barand]

instead of the for loop, what do you get with

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

[micmac]

Got it sorted.

session_start(); 

$cart = $_SESSION['cart']; # get current contents 
$cart[] = array($_POST['prod_id'], $_POST['qty']); 

$count_array = count($cart);  

$_SESSION['cart'] = $cart; 


for ($i = 0; $i < $count_array; $i++) 
{ 
echo $_SESSION['cart'][$i]['0'] . $_SESSION['cart'][$i]['1'] . "<br>"; 
} 

Thanks for your help barand 🙂