= 4.0.4, PHP 5, PHP 7, PHP 8)gmp_powm — Raise number into power with modulo說明gmp_powm(GMP|int|string $num, GMP|int|string $exponent, G">

gmp_powm

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_powm — Raise number into power with modulo

說明

gmp_powm(GMP|int|string $num, GMP|int|string $exponent, GMP|int|string $modulus): GMP

Calculate (num raised into power exponent) modulo modulus. If exponent is negative, result is undefined.

參數(shù)

num

The base number.

GMP 對象或 int ，或數(shù)字string。

exponent

The positive power to raise the num.

GMP 對象或 int ，或數(shù)字string。

modulus

The modulo.

GMP 對象或 int ，或數(shù)字string。

返回值

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

范例

示例 #1 gmp_powm() example

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

以上例程會輸出：

2147483648