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gmp_hamdist (PHP 4 >= 4.0.4) gmp_hamdist -- Hamming distance Descriptionint gmp_hamdist ( resource a, resource b)
Returns the hamming distance between a and b. Both operands should be non-negative. Example 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: |
See also gmp_popcount(), gmp_xor()
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