variable type for @total in class-start.php?

I have made a little addition to class-start.php:

$total1 = strval(floatval($total)+15);
// Recurring payment, subscription
$payment = $this->mollie->payments->create(array(
‘amount’ => $total1,

this was in previous versions
now the code has changed with the currency option
I now have:

$total1 = strval(floatval($total)+15);
// Recurring payment, subscription
$payment = $this->mollie->payments->create(array(
‘amount’ => array(
‘currency’ => $currency,
‘value’ => (string) $total1
),

but now i see (string) in the code, I don’t know wat that means
is the variable $total still a string like before? Otherwise my code will not work. Can you please tell me if this variable is still a string?

This little piece of code adds 15 euros to the first paymanet. The later payments are without these 15 euros.

I see more demands for an extra amount in the first payment. Perhaps in this way you can program it in the plugin. This should not be very difficult.

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