= 4.0.4, PHP 5, PHP 7, PHP 8)gmp_gcd — Calculate GCD說明gmp_gcd(GMP|int|string $num1, GMP|int|string $num2): GMPCalculate greatest common">

gmp_gcd

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

gmp_gcd — Calculate GCD

說明

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.

參數(shù)

num1

GMP 對象或 int ，或數(shù)字string。

num2

GMP 對象或 int ，或數(shù)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";
?>

以上例程會輸出：

3

參見