gmp_powm

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

gmp_powm — Raise number into power with modulo

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gmp_powm ( GMP $base , GMP $exp , GMP $mod ) : GMP

Calculate (base raised into power exp) modulo mod. If exp is negative, result is undefined.

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base

The base number.

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exp

The positive power to raise the base.

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mod

The modulo.

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The new (raised) number, as a GMP number.

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Example #1 gmp_powm() example

<?php
$pow1 = gmp_powm("2", "31", "2147483649");
echo gmp_strval($pow1) . "\n";
?>

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2147483648