(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_neg — Negate number
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.
Returns -a
, as a GMP number.
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