Dual currency problem..please help

[dotty]

Hi,

I have an event booking site that displays some prices in Euro and some in Sterling. I use 'if / else' to control the correct currency for each product and it works fine.

I want to force the user to check out with one currency at a time, in other words if they want to buy a Euro product and a Sterling product they will have to check out each separately. I have a sql statement which lists the currencies stored in the shopping cart table and I want to compare these and ensure that they're all the same currency before allowing the user to check out. In English this is:

If currencies in array are not equal to each other - print error - else go to checkout

Anyone know to write this in PHP? :bemused:

[MarkR]

Just loop through the array. Or use array_unique.

Suppose you have an array

$basket = array(
  array('1', 'First item', '10.00', 'GBP'),
  array('2', 'Second item', '5.00', 'GBP'),
  array('3', 'Troisieme chose', '25.00', 'EUR')
);

Then you can just loop through the array, checking that the currencies are all the same as the first one.

So maybe

// NB: assumes that there is at least one item in the basket otherwise the following will fail or throw a notice / warning
$different_currencies = false;
$first_currency = $basket[0][3];
foreach ($basket as $item) {
  if ($item[3] != $first_currency) {
    $different_currencies = true;
  }
}

Or something?

Mark

[dotty]

Thanks Mark,

I will try this and see how it works 🙂