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gmp_neg

PHP function Edit on GitHub ✎

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

Negate number

Description

gmp_neg(GMP|int|string $num): GMP

Returns the negative value of a number.

Returns -num, as a GMP number.

gmp_neg() example

php

<?php
$neg1 = gmp_neg("1");
echo gmp_strval($neg1) . "\n";
$neg2 = gmp_neg("-1");
echo gmp_strval($neg2) . "\n";
?>

The above example will output:

output

-1
1

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