(PHP 4 >= 4.0.4, PHP 5)
Return the population count of a.
Пример 1. gmp_popcount() example
<?php $pop1 = gmp_init ( "10000101" , 2 ); // 3 1's echo gmp_popcount ( $pop1 ) . "\n" ; $pop2 = gmp_init ( "11111110" , 2 ); // 7 1's echo gmp_popcount ( $pop2 ) . "\n" ; ?>
The printout of the above program will be:
3 7