GMP Functions
PHP Manual

gmp_com

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

gmp_comCalculates one's complement

Description

GMP gmp_com ( GMP $a )

Returns the one's complement of a.

Parameters

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

Returns the one's complement of a, as a GMP number.

Examples

Example #1 gmp_com() example

<?php
$com 
gmp_com("1234");
echo 
gmp_strval($com) . "\n";
?>

The above example will output:

-1235

GMP Functions
PHP Manual