gmp_gcd
(PHP 4 >= 4.0.4)
gmp_gcd -- Calculate 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.
Example 1. gmp_gcd() example
<?php
$gcd = gmp_gcd("12", "21");
echo gmp_strval($gcd) . "\n";
?>
The printout of the above program will be:
3
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