gmp_gcd

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

gmp_gcd — Calculate GCD

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.

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

示例 #1 gmp_gcd() example


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

以上例程会输出：