gmp_gcd

Description

resource gmp_gcd ( resource a, resource b)

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

例子 1. gmp_gcd() example


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

The printout of the above program will be: