Add the following dependency to your composer.json file.
{
"require": {
"abibidu/bitmask": "^1.0"
}
}
For example we have User class that can have different roles.
use Abibidu\Bit\Mask;
class User
{
const ROLE_ADMIN = Mask::FLAG_1;
const ROLE_MANAGER = Mask::FLAG_2;
const ROLE_CUSTOMER = Mask::FLAG_3;
/**
* @var Mask
*/
private $roles;
public function __construct()
{
$this->roles = new Mask();
}
public function becomeAdmin()
{
$this->roles->add(self::ROLE_ADMIN);
}
public function isAdmin()
{
return $this->roles->has(self::ROLE_ADMIN);
}
...
public function isCustomer()
{
return $this->roles->has(self::ROLE_CUSTOMER);
}
...
}
Now we are able to create a user.
$user = new User();
$user->becomeAdmin(); // User now has admin role
$user->becomeAdmin(); // Throws MaskException because role has been already set
// and mask is in strict mode
$user->isAdmin(); // Returns true
$user->isCustomer(); // Returns false