gmp_sub

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

gmp_sub — Subtract numbers

Description

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

Subtracts num2 from num1 and returns the result.

Parameters

num1

The number being subtracted from.

A GMP object, an int or a numeric string.

num2

The number subtracted from num1.

A GMP object, an int or a numeric string.

Return Values

A GMP object.

Examples

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

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https://www.php.net/manual/en/function.gmp-sub.php