PHP number_format is rounding?

Question

I have a price "0,10" or "00000,10"

Now when i try

number_format($price, 2, ',', '')

I get 0,00. How can i fix this? I want 0,10 $. I don't want rounding.

Or when i have 5,678, i get 5,68. But i want 5,67.

Answer 1

You can increase the size of the number before rounding down with floor:

$price = floor($price * 100) / 100;
$formatted = number_format($price, 2, ',', '');

Another solution, which may give better precision since it avoids floating-point arithmetic, is to format it with three decimals and throw away the last digit after formatting:

$formatted = substr(number_format($price, 3, ',', ''), 0, -1);

Answer 2

Use this (needs activated intl PHP extension)

$numberFmtCurrency = new NumberFormatter('de_AT', NumberFormatter::CURRENCY);
$numberFmtCurrency->setAttribute(NumberFormatter::ROUNDING_INCREMENT, 0);
$numberFmtCurrency->formatCurrency(328.13, 'EUR'); // prints € 328.13 (and not 328.15)