In addition to the bug description provided, I have the following example, using the procedural functions:

$fmt = numfmt_create('en_US', NumberFormatter::DECIMAL);
echo numfmt_format_currency($fmt, 32.00, "EUR")."\n";

I would expect that this would return 32,00, however, it returns 32. I've used a number of ISO 4217 currency codes (specifically USD, EUR, AUD, GBP) but the output remains the same. It's worth noting that if the float value provided to numfmt_format_currency contains a fractional part, in addition to the integral part, then the number formats as expected. 

Environment Details: PHP 7.3.6 / macOS 10.14.5.

closing, as it turns out the dev was using TYPE_CURRENCY and not just CURRENCY. It works after the change

From the docs: https://www.php.net/manual/en/class.numberformatter.php

`These styles are used by the numfmt_create() to define the type of the formatter.` 

... NumberFormatter:CURRENCY ...

`These constants define how the numbers are parsed or formatted. They should be used as arguments to numfmt_format() and numfmt_parse().`: 

... NumberFormatter::TYPE_CURRENCY ...

Wrong parameter choosen here. :)


-------------

To the problem in the comments with decimal

Original code:

<?php

$fmt = numfmt_create('en_US', NumberFormatter::DECIMAL);
echo numfmt_format_currency($fmt, 32.00, "EUR")."\n";

Fixed code:

<?php

$fmt = numfmt_create('en_US', NumberFormatter::DECIMAL);
numfmt_set_attribute($fmt, NumberFormatter::MIN_FRACTION_DIGITS, 2);
echo numfmt_format_currency($fmt, 32.00, "EUR")."\n";

https://3v4l.org/IRhPQ