gmp_scan1
PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8
gmp_scan1 - Scan for 1
Manual
gmp_scan1(
GMP|int|string$num1,
int$start ): int
Scans num1, starting with bit start, towards more significant bits, until the first set bit is found.
Parameters
- num1
-
The number to scan.
A GMP object, an int or a numeric string.
- start
-
The starting bit.
Return Values
Returns the index of the found bit, as an int. If no set bit is found, -1 is returned.