(PHP 5 >= 5.3.0, PHP 7, PHP 8)
gmp_testbit — Tests if a bit is set
Returns true
if the bit is set in num
,
otherwise false
.
An E_WARNING
level error is issued when
index
is less than zero, and false
is returned.
Example #1 gmp_testbit() example
<?php$n = gmp_init("1000000");var_dump(gmp_testbit($n, 1));gmp_setbit($n, 1);var_dump(gmp_testbit($n, 1));?>
The above example will output:
bool(false) bool(true)