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bcsub

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

bcsub — Subtract one arbitrary precision number from another

Опис

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

Subtracts num2 from num1.

Параметри

num1

The left operand, as a string.

num2

The right operand, as a string.

scale
This parameter is used to set the number of digits after the decimal place in the result. If null, it will default to the default scale set with bcscale(), or fallback to the value of the bcmath.scale INI directive.

Значення, що повертаються

The result of the subtraction, as a string.

Помилки/виключення

This function throws a ValueError in the following cases:

Журнал змін

Версія Опис
8.0.0 scale is now nullable.

Приклади

Приклад #1 bcsub() example

<?php

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

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

?>

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