gmp_powm
(PHP 4 >= 4.0.4, PHP 5)
gmp_powm -- Raise number into power with modulo
Description
resource
gmp_powm ( resource base, resource exp, resource mod )
Calculate (base raised into power
exp) modulo mod. If
exp is negative, result is undefined.
例子 1. gmp_powm() example
<?php $pow1 = gmp_powm("2", "31", "2147483649"); echo gmp_strval($pow1) . "\n"; ?>
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The printout of the above program will be:
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