PHP | gmp_pow() Function (original) (raw)

Last Updated : 11 Jul, 2025

The gmp_pow() is an inbuilt function in PHP which is used to calculate the power raised to a number of a GMP number and an integer (GNU Multiple Precision: For large numbers).Syntax:

gmp_pow( base,base, base,exp )

Parameters: The function accepts two mandatory parameters baseandbase and baseandexp.

  1. $base - It is the base number. This parameter can be a GMP object in PHP version 5.6 and later, or we are also allowed to pass a numeric string provided that it is possible to convert that string to a number.
  2. $exp - It is the power which is raised to the base

Return Value: This function returns a positive GMP number which is equivalent to basebasebaseexpExamples:

Input : base="2"base = "2" base="2"exp = 2 Output : 4

Input : base="0"base = "0" base="0"exp = 0 Output : 1

Below programs illustrate the gmp_pow() function:Program 1: The program below demonstrates the working of gmp_pow() function when GMP number is passed as an argument.

php `

pow=gmppow(pow = gmp_pow(pow=gmpp​ow(base, $exp); // 4^2 // gmp_strval Convert GMP number to string // representation in given base(default 10). echo gmp_strval($pow, 2) . "\n"; ?>

`

Output:

10000

Program 2: The program below demonstrates the working of gmp_pow() when numeric string is passed as an argument.

php `

pow=gmppow(pow = gmp_pow(pow=gmpp​ow(base, $exp); echo $pow; ?>

`

Output:

10000

Reference: https://www.php.net/manual/en/function.gmp-pow.php