Php/docs/function.gmp-popcount
来自菜鸟教程
gmp_popcount
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_popcount — Population count
返回值
The population count of a
, as an int.
范例
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";?>
以上例程会输出:
3 7