I’m attempting to achieve the same thing I can achieve in javascript like so:

Intl.NumberFormat('en-CA', {style: 'currency', currency: 'CAD', notation: 'compact', maximumSignificantDigits: 5 }).format(12345000000);
// Output: $12.345B"
Intl.NumberFormat('fr-CA', {style: 'currency', currency: 'CAD', notation: 'compact', maximumSignificantDigits: 5 }).format(12345000000);
// Output: "12,345 G$"

I can do the shortform notation like so:

$formatter = new NumberFormatter('en_CA', NumberFormatter::PADDING_POSITION);
$formatter->setAttribute(NumberFormatter::SIGNIFICANT_DIGITS_USED, 5);
echo $formatter->format(12345000000);

// Output: 12.345B

$formatter = new NumberFormatter('fr_CA', NumberFormatter::PADDING_POSITION);
$formatter->setAttribute(NumberFormatter::SIGNIFICANT_DIGITS_USED, 5);
echo $formatter->format(12345000000);

// Output: 12,345 G

Or I can do currency formatting like this:

$formatter = new NumberFormatter('en_CA', NumberFormatter::CURRENCY);
echo $formatter->formatCurrency(12345000000, 'CAD');

// Output: $12,345,000,000.00

$formatter = new NumberFormatter('fr_CA', NumberFormatter::CURRENCY);
echo $formatter->formatCurrency(12345000000, 'CAD');

// Output: 12 345 000 000,00 $

But I can’t combine the two. If I attempt it like so, the $ does not display:

$formatter = new NumberFormatter('en_CA', NumberFormatter::PADDING_POSITION);
$formatter->setAttribute(NumberFormatter::SIGNIFICANT_DIGITS_USED, 5);
echo $formatter->formatCurrency(12345000000, 'CAD');

// Output: 12.345B

$formatter = new NumberFormatter('fr_CA', NumberFormatter::PADDING_POSITION);
$formatter->setAttribute(NumberFormatter::SIGNIFICANT_DIGITS_USED, 5);
echo $formatter->formatCurrency(12345000000, 'CAD');

// Output: 12,345 G

The php.net documentation for NumberFormatter is surprisingly sparse. Is what I’m trying to do impossible or is there some other trick here?

I know I can roll a custom solution here but I would like to be able to rely on built-in l18n methods like I can in JavaScript.