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gmp_init gmp_gcdext

Last updated: Sat, 27 Jan 2007

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# 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);
$ham2 = gmp_init("1011111100", 2);
echo gmp_hamdist($ham1, $ham2) . "\n";
/* hamdist is equivilent to: */
echo gmp_popcount(gmp_xor($ham1, $ham2)) . "\n";
?>`

The printout of the above program will be:

    6
    6

See also gmp_popcount(), gmp_xor()

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gmp_init gmp_gcdext

Last updated: Sat, 27 Jan 2007
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