Fixed the problem with prices for some locales

[itelmenko]

Some locales have decimal comma instead of dot. But in this case converting from string to float is incorrect:

setlocale(LC_NUMERIC, 'ru_RU.UTF-8'); 
$amount = '10.95';
$fAmount = (float) $amount;
var_dump($fAmount);  // result is 10.95
$amount = '10,95';
$fAmount = (float) $amount; 
var_dump($fAmount);  // result is 10

I have fixed it.

Also BitPay package works fine for php 5.3.15. I have tested it on production

[pieterpoorthuis]

Rejecting this PR, because it can cause problems with merchants using , as a thousand separator.

[itelmenko]

So you have problems with some locales. Why you closed it?

[pieterpoorthuis]

BitPay's PHP library should not replace characters in the price.

Instead, the local implementation of the merchant should reformat the price in such a way that it can be passed to BitPay's PHP library.

[itelmenko]

And merchants using comma as a thousand separator? They also do that?
Also where in documentation I can read it?