Using While Loops on Session Arrays - please help!

[designrandom]

Can I use a While Loop on a session array?

 

What I mean is, can I do this, but for an array result instead of a mysql query result?

 

while ($row = mysql_fetch_array ($result)) {
echo 'output goes here';
}

 

How would I do this for a session array that looks like this? I need to get the $sessID for each instance of the shopping cart session.

$_SESSION['cart'][$sessID] = array ('quantity' => 1, 'price' => $prodPrice, 'prodName' => $prodName, 'handle' => $handle);

 

There is a good chance that I'm actually making this very difficult for myself. If any one has a better idea of how to do the following, I would love to hear it! Thanks...

 

I am building a php/mysql shopping cart for a cricket website. When the website user adds a cricket bat to the shopping cart they must select some options:

 

Bat size, Handle size, Bat Edges, Bat Weight, Etc...

 

There are between 6 and 10 options depending on the chosen cricket bat.

 

I add the details to the shopping cart session like this:

 

 

$sessID = uniqid();

$prodID = (int) $_POST['prodID'];
$prodName = $_POST['prodName'];
$prodPrice = $_POST['prodPrice'];
$size = $_POST['size'];
$handle = $_POST['handle'];
$weight = $_POST['weight'];
$edges = $_POST['edges'];

$_SESSION['cart'][$sessID] = array ('quantity' => 1, 'price' => $prodPrice, 'prodName' => $prodName, 'handle' => $handle);

 

On the viewcart.php page I intend on outputting the price and product name from the shopping cart arrays.

 

The problem is, I don;t know how to set a while loop for all the instances of $sessID?

 

Any thoughts on this would be greatly appreciated.

 

Thanks

[MadTechie]

do you mean something like this

$_SESSION['cart'][$sessID] = array(); // set as an array

//add to the array
$_SESSION['cart'][$sessID][] = array ('quantity' => 1, 'price' => $prodPrice, 'prodName' => $prodName, 'handle' => $handle);

echo "<pre>";
//loop thought the array
foreach($_SESSION['cart'][$sessID] as $Item)
{
    print_r($Item);
}
echo "</pre>";

[designrandom]

MadTechie,

 

Thanks for your super quick reply - I appreciate your help.

 

I tried your code, but got the following error:

Warning:  Invalid argument supplied for foreach() in /home/timcarl/public_html/viewcartoption.php on line 9

 

I suspect that it's because $sessID no longer exists. After adding the items to the shopping cart, I go to a different page (viewcart.php) to view the contents of the cart and checkout.

 

I have the following code at the top of my viewcart page:

foreach ($_SESSION['cart'] as $sessID => $value) {
	$allsessids .= $sessID;
}

 

The problem is, I now have one massive number in the variable $allsessids, instead of a list of a list of the shopping cart session ID's.

 

When I come to output the shopping cart sessions, how would you do it?

 

I thought a While Loop was the best way, but I'm not sure how to code it. I want something like this:

 

echo '<td>'.$_SESSION['cart'][$sessID]['quantity'].'</td><td>'.$_SESSION['cart'][$sessID]['price'].'</td>';

 

Which would give me a table of results of everything in my shopping cart:

 

Item 1 - £100 - quantity:1

Item 2 - £120 - quantity: 1

 

I hope this makes sense. Thanks again for your quick response.

 

 

 

 

[MadTechie]

I don't believe your even need $sessID in the array, unless theirs a purpose for it ?

 

personally i would do this

 

$_SESSION['cart'] = array(); // set as an array

//add to the array
$_SESSION['cart'][] = array ('quantity' => 1, 'price' => $prodPrice, 'prodName' => $prodName, 'handle' => $handle);

 

So in my example (below) $item is the array

 

foreach ($_SESSION['cart'] => $item) {
      echo '<td>'. $item['quantity'].'</td><td>'. $item['price'].'</td>';
   }

 

personally I use foreach on arrays and while with SQL queries, I find it easier that way.. as I don't know when the query will end but with an array i don't want to check if I'm on the last item!