| protected static getMinimalBitMask ( integer $toRepresent ) : integer | ||
| $toRepresent | integer | must be an integer greater than or equal to 1 |
| return | integer | |
protected static function getMinimalBitMask($toRepresent)
{
if ($toRepresent < 1) {
return false;
}
$mask = 0x1;
while ($mask < $toRepresent) {
$mask = $mask << 1 | 1;
}
return $mask;
}