gmp_neg

Negate number

Description

GMP gmp_neg(GMPintstring $num)

Returns the negative value of a number.

Parameters

num

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).

Return Values

Returns -num, as a GMP number.

Examples

Example #1 gmp_neg example

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

The above example will output:

-1
1