gmp_pow
(PHP 4 >= 4.0.4)
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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