(PHP 4 >= 4.0.4, PHP 5)
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:
6 6
See also gmp_popcount(), gmp_xor()
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