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<gmp_popcountgmp_powm>
Last updated: Tue, 19 Sep 2006

gmp_pow

(PHP 4 >= 4.0.4, PHP 5)

gmp_pow -- Raise number into power

Description

resource gmp_pow ( resource base, int exp )

Raise base into power exp. The case of 0^0 yields 1. exp cannot be negative.

Example 1. gmp_pow() example

<?php
$pow1 = gmp_pow("2", 31);
echo gmp_strval($pow1) . "\n";
$pow2 = gmp_pow("0", 0);
echo gmp_strval($pow2) . "\n";
$pow3 = gmp_pow("2", -1); // Negative exp, generates warning
echo gmp_strval($pow3) . "\n";
?>

The printout of the above program will be: 

2147483648
1



<gmp_popcountgmp_powm>
Last updated: Tue, 19 Sep 2006