(PHP 4 >= 4.0.4)
Calculate greatest common divisor of a and b. The result is always positive even if either of, or both, input operands are negative.
Przykład 1. gmp_gcd() example
<?php $gcd = gmp_gcd("12", "21"); echo gmp_strval($gcd) . "\n";?>
The printout of the above program will be:
3