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PHP gmp_sub

PHP original manual for gmp_sub [ show | php.net ]

gmp_sub

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

gmp_sub — Subtract numbers

Description

GMP gmp_sub ( GMP $a , GMP $b )

Subtracts b from a and returns the result.

Parameters

a

The number being subtracted from.

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

b

The number subtracted from a.

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

Return Values

A GMP number resource in PHP 5.5 and earlier, or a GMP object in PHP 5.6 and later.

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