PHP - gmp_powm() Function

Definition and Usage

The gmp_powm() function returns the new number with the given number raised to the power along with modulo.

The gmp_powm() function will return a new GMP number where the given number raised to the power and also the modulo.

gmp_powm ( GMP $base , GMP $exp , GMP $mod ) : GMP

Sr.No	Parameter & Description
1	base The base number.It can a GMP resource number , a gmp object or a numeric string.
2	exp The positive power to raise the base.If negative value is used ,the function will return undefined.
3	mod The modulo.

Sr.No

Parameter & Description

base

The base number.It can a GMP resource number , a gmp object or a numeric string.

exp

The positive power to raise the base.If negative value is used ,the function will return undefined.

mod

The modulo.

PHP gmp_powm() function returns a new GMP rnumber that is calcuated based on the given base number, exp and mod.

This function will work from PHP Version greater than 5.0.0.

Working of gmp_powm() −

<?php
   $num = gmp_powm("12", "21", "2147");	
   echo "The result is : ".gmp_strval($num);
?>

This will produce following result −

The new number is : 1766

Working of gmp_powm() −

<?php
   $num = gmp_powm("121", "21", "8162147");	
   echo "The new number is : ".$num;
?>

This will produce following result −

The new number is : 344023

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