Arrays and list() and math

[brinkley]

Hello, hoping someone could help - I've been on this a few days and can't figure this out for the life of me.  I have an array, and have to sort through it with list() and each()  , and then I will have to do some calculations on the values, but I can't seem to figure out how to do so.  Here is the array and the loop that I have, but how do I separate the price and shipping to add/multiply and perform math/calculations on those values?

 

$product = array( 
  array ( "name" => "DVD", "price" => 12.95, "shipping_price" => 0),
  array ( "name" => "Blu-ray Player", "price" => 99.5, "shipping_price" => 0.10),
  array ( "name" => "DVD Player", "price" => 42.99, "shipping_price" => 0.1));


while (list($key, $val) = each($product)) {
    echo "$key => $val\n";
}

 

Thank you in advance

 

 

 

[trq]

You would be better off not using list. Example....

 

$products = array( 
    array ( "name" => "DVD", "price" => 12.95, "shipping_price" => 0),
    array ( "name" => "Blu-ray Player", "price" => 99.5, "shipping_price" => 0.10),
    array ( "name" => "DVD Player", "price" => 42.99, "shipping_price" => 0.1)
);

foreach ($products as $product) {
    $total = $product['price'] + $product['shipping_price'];
    echo "The {$product['name']} will cost you \$ $total in total";
}

[brinkley]

Thanks for the reply. That's what I was thinking as well, but the instructor is insisting we try using  list() and each() with this example

[trq]

Ok, then....

 

while (list($name, $price, $shipping) = each($product)) {
    $total = $price + $shipping;
    echo "The {$product['name']} will cost you \$ $total in total";
}

[brinkley]

Got it now. I understand, thanks!

[teamatomic]

Shouldnt that be something more like this?

 

while (list($key,$value) = each($product)) {
$total=$value['price']+$value['shipping_price'];
  echo "The item {$value['name']} costs a total of \$$total<br>";
}

 

 

HTH

Teamtomic

[brinkley]

I took what you did and that really helped enormously. Thank you!