gmp_powm
gmp_powm
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_powm — Raise number into power with modulo
Description
GMP gmp_powm ( GMP $base , GMP $exp , GMP $mod )
Calculate (base raised into power exp) modulo mod. If exp is negative, result is undefined.
Parameters
-
base -
The base number.
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.
-
exp -
The positive power to raise the
base.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.
-
mod -
The modulo.
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
The new (raised) number, as a GMP number.
Examples
Example #1 gmp_powm() example
<?php
$pow1 = gmp_powm("2", "31", "2147483649");
echo gmp_strval($pow1) . "\n";
?> The above example will output:
2147483648
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.gmp-powm.php
