public function uuid()
    {
        return new static(sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff),
            mt_rand(0, 0x0fff) | 0x4000,
            mt_rand(0, 0x3fff) | 0x8000,
            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
        ));
    }
public function uuid()
    {
        return new static(sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff),
            mt_rand(0, 0x0fff) | 0x4000,
            mt_rand(0, 0x3fff) | 0x8000,
            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
        ));
    }
public function uuid ( ) { return new static ( sprintf ( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x' , mt_rand ( 0 , 0xffff ) , mt_rand ( 0 , 0xffff ) , mt_rand ( 0 , 0xffff ) , mt_rand ( 0 , 0x0fff ) | 0x4000 , mt_rand ( 0 , 0x3fff ) | 0x8000 , mt_rand ( 0 , 0xffff ) , mt_rand ( 0 , 0xffff ) , mt_rand ( 0 , 0xffff ) ) ) ; }
Generates random Unique User Identifier

@return static
Generates random Unique User Identifier