bcsub

PHP function Edit on GitHub ✎

(PHP 4, PHP 5, PHP 7, PHP 8)

Subtract one arbitrary precision number from another

Description

bcsub(string $num1, string $num2, int|null $scale = null): string

Subtracts num2 from num1.

The result of the subtraction, as a string.

Version	Description
8.0.0	`scale` is now nullable.

bcsub() example

php

<?php

$a = '1.234';
$b = '5';

echo bcsub($a, $b);     // -3
echo bcsub($a, $b, 4);  // -3.7660

?>