gmp_testbit
PHP 5 >= 5.3.0, PHP 7, PHP 8
gmp_testbit - Tests if a bit is set
Manual
gmp_testbit(
GMP|int|string$num,
int$index ): bool
Tests if the specified bit is set.
Parameters
- num
-
A GMP object, an int or a numeric string.
- index
-
The bit to test
Return Values
Returns true if the bit is set in num, otherwise false.
Exceptions and Errors
An E_WARNING level error is issued when index is less than zero, and false is returned.