gmp_popcount() function in PHP

The gmp_popcount() function gets the count of set bits in the binary representation of a GMP number.

Syntax

gmp_popcount (val)

Parameters

• val: The GMP number. It can be GMP object in PHP version 5.6 and later. Can also be numeric strings.

Return

The gmp_popcount() function returns the number of set bits in binary representation of a GMP number. The result is an integer.

Example

The following is an example:

<?php
   $val= "6";
   $res = gmp_popcount($val);
   echo $res;
?>

Output

The following is the output:

2