gmp_popcount
(PHP 4 >= 4.0.4, PHP 5)
gmp_popcount — Population count
Description
int gmp_popcount
( resource $a
)
Parameters
-
a
-
It can be either a GMP number resource, or a
numeric string given that it is possible to convert the latter to a number.
Return Values
The population count of a
, as an integer.
Examples
Example #1 gmp_popcount() example
<?php
$pop1 = gmp_init("10000101", 2); echo gmp_popcount($pop1) . "\n";
$pop2 = gmp_init("11111110", 2); echo gmp_popcount($pop2) . "\n";
?>
The above example will output:
gmp_perfect_square
