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# 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

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