Change language:

gmp_sub

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

gmp_sub — Subtract numbers

function 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.
A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).
num2: The number subtracted from num1.
A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).

A GMP object.

Example #1 gmp_sub() example

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

The above example will output:

281470681743360

There are no user contributed notes for this page.