gmp_gcd

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

gmp_gcdCalculate GCD

说明

gmp_gcd ( GMP|int|string $num1 , GMP|int|string $num2 ) : GMP

Calculate greatest common divisor of num1 and num2. The result is always positive even if either of, or both, input operands are negative.

参数

num1

GMP 对象或 int ,或数字string

num2

GMP 对象或 int ,或数字string

返回值

A positive GMP number that divides into both num1 and num2.

范例

示例 #1 gmp_gcd() example

<?php
$gcd 
gmp_gcd("12""21");
echo 
gmp_strval($gcd) . "\n";
?>

以上例程会输出:

3

参见