(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_pow — Raise number into power
gmp_pow ( GMP|int|string $num , int $exponent ) : GMP
Raise num into power exponent.
num
The base number.
A GMP object, an int or a numeric string.
exponent
The positive power to raise the num.
The new (raised) number, as a GMP number. The case of 0^0 yields 1.
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 above example will output:
2147483648 1
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https://www.php.net/manual/en/function.gmp-pow.php