PHP. Руководство по PHP. 2005

gmp_hamdist

Пред.

След.

gmp_hamdist

(PHP 4>= 4.0.4, PHP 5)gmp_hamdist -- Hamming distance

Description

int gmp_hamdist (resource a, resource b)

Returns the hamming distance between a and b. Both operands should be non-negative.

Пример 1. gmp_hamdist() example


<?php
$ham1 = gmp_init("1001010011", 2);
$ham2 = gmp_init("10100", 2);
echo gmp_hamdist($ham1, $ham2) . "\n";
/* hamdist is equivilent to: */
echo gmp_popcount(gmp_xor($ham1, $ham2)) . "\n";
?>

The printout of the above program will be:

Ваше письмо	×