gmp_gcd
(PHP 4 >= 4.0.4, PHP 5)
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.
例子 1. gmp_gcd() example
<?php
$gcd = gmp_gcd("12", "21");
echo gmp_strval($gcd) . "\n";
?>
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The printout of the above program will be:
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