gmp_neg
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_neg — Negate number
Description
gmp_neg ( GMP|int|string $num ) : GMP
Returns the negative value of a number.
Parameters
-
num -
A GMP object, an int or a numeric string.
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
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https://www.php.net/manual/en/function.gmp-neg.php