(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_hamdist — Hamming distance
Returns the hamming distance between num1
and
num2
. Both operands should be non-negative.
The hamming distance between num1
and num2
, as an int.
Example #1 gmp_hamdist() example
<?php$ham1 = gmp_init("1001010011", 2);$ham2 = gmp_init("1011111100", 2);echo gmp_hamdist($ham1, $ham2) . "\n";/* hamdist is equivalent to: */echo gmp_popcount(gmp_xor($ham1, $ham2)) . "\n";?>
The above example will output:
6 6