略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: gmp_powm

2024-05-02

gmp_powm

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

gmp_powmRaise number into power with modulo

说明

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.

参数

num

The base number.

GMP 对象或 int ,或数字string

exponent

The positive power to raise the num.

GMP 对象或 int ,或数字string

modulus

The modulo.

GMP 对象或 int ,或数字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";
?>

以上例程会输出:

2147483648
add a noteadd a note

User Contributed Notes 1 note

up
1
jessietessie256 at gmail dot com
3 years ago
can be used for RSA encryption/decryption!

官方地址:https://www.php.net/manual/en/function.gmp-powm.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3