(PHP 4 >= 4.0.4)
Return the population count of a.
Example 1. gmp_popcount() example
<?php$pop1 = gmp_init("10000101", 2); // 3 1'secho gmp_popcount($pop1) . "\n";$pop2 = gmp_init("11111110", 2); // 7 1'secho gmp_popcount($pop2) . "\n";?>
The printout of the above program will be:
3 7
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