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gmp_sub

PHP function Edit on GitHub ✎

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

Subtract numbers

Description

gmp_sub(GMP|int|string $num1, GMP|int|string $num2): GMP

Subtracts num2 from num1 and returns the result.

num1

The number being subtracted from.

Parameter

num2

The number subtracted from num1.

Parameter

Return

gmp_sub() example

php

<?php
$sub = gmp_sub("281474976710656", "4294967296"); // 2^48 - 2^32
echo gmp_strval($sub) . "\n";
?>

The above example will output:

output

281470681743360

Source: reference/gmp/functions/gmp-sub.xml · from the official PHP manual (php/doc-en)