Personal Identity

Data types for swedish personal identity and corporation id numbers.

Installation

composer require byrokrat/id

Usage

use byrokrat\id\PersonalId;
use byrokrat\id\IdInterface;

$id = new PersonalId('940323-2383');

// outputs 940323-2383
echo $id;

// outputs 940323-2383
echo $id->format(IdInterface::FORMAT_10_DIGITS);

// outputs 199403232383
echo $id->format(IdInterface::FORMAT_12_DIGITS);

// outputs 940323
echo $id->format('ymd');

// outputs something like 25
echo $id->getAge();

// outputs 1 (true)
echo $id->isFemale();

use byrokrat\id\OrganizationId;
use byrokrat\id\IdInterface;

$id = new OrganizationId('835000-0892');

// outputs 835000-0892
echo $id->format(IdInterface::FORMAT_10_DIGITS);

// outputs 008350000892
echo $id->format(IdInterface::FORMAT_12_DIGITS);

// outputs 1 (true)
echo $id->isSexUndefined();

// outputs 1 (true)
echo $id->isNonProfit();

Class hierarchy

• IdInterface The base interface. Look here for a complete API reference.
  • PersonalId The identification number of a swedish individual (personnummer).
    • CoordinationId Identifier for non-citizens (samordningsnummer).
    • FakeId Replacement usable when a person must have an id, but is not registered with the swedish authorities.
  • OrganizationId Identifies a swedish company or organization (organisationsnummer).
  • NullId Null object implementation.

Creating ID objects

Creating ID objects can be complicated.

• A personal id can be a coordination id, if the individual identified is not a swedish citizen.
• A corporation id can be a personal id if the corporation is registered with a single individual (egenföretagare).
• A single individual company can use a coordination id if the individual is not a swedish citizen.
• At times you may wish to process persons without a valid swedish personal id, using the FakeId implementation.

To solve these difficulties a decoratable set of factories is included. Create a factory with the abilities you need by chaining factory objects at creation time.

use byrokrat\id\PersonalIdFactory;
use byrokrat\id\CoordinationIdFactory;

$factory = new PersonalIdFactory(new CoordinationIdFactory);

$id = $factory->createId('940323-2383');

In this example the factory will first try to create a PersonalId, if this fails it will try to create a CoordinationId, if this fails it will throw an Exception.

The following factories are included:

• PersonalIdFactory
• CoordinationIdFactory
• FakeIdFactory
• OrganizationIdFactory
• NullIdFactory
• FailingIdFactory

Controlling the delimiter and century of ids containing dates

In order to controll the computation of dates you may specify at what time parsing takes place by passing a datetime object.

use byrokrat\id\PersonalIdFactory;

$factory = new PersonalIdFactory;

// Year interpreted as 2010 as parsing is done 2020
$young = $factory->createId('1001012382', new \DateTime('20200101'));

// Year interpreted as 1910 as parsing is done 1990
$older = $factory->createId('1001012382', new \DateTime('19900101'));

// outputs 2010
echo $young->format('Y');

// outputs 1910
echo $older->format('Y');

Specifying parse date also affects what delimiter is used.

use byrokrat\id\PersonalIdFactory;

$factory = new PersonalIdFactory;

// Delimiter is '+' as parsing is done in 2050
$id = $factory->createId('194001079120', new \DateTime('20500101'));

// outputs 400107+9120
echo $id;

Formatting

Ids can be printed in custom formats using the format() method, where $formatStr is a mix of format tokens and non-formatting characters (for a list of formatting tokens se below).

echo $id->format($formatStr);

If you need to format a large number of ids a formatter object can be created.

use byrokrat\id\Formatter\Formatter;
use byrokrat\id\PersonalId;

$formatter = new Formatter('y');

// outputs 82
echo $formatter->format(new PersonalId('940323-2383'));

Formatting tokens

Characters that are not formatting tokens are returned as they are by the formatter.

Token	Description
C	Century, 2 digits (00 if not applicable)
S	Part of serial number before delimiter, 6 digits
-	Date and control string delimiter (- or +)
s	Part of serial number after delimiter, 3 digits
k	Check digit
X	Sex, F, M or O (empty if not applicable)
L	Legal form (empty if not applicable)
B	Birth county (empty if not applicable)
\	Escape the following character
	The following tokens are only valid for ids containing a date
A	Current age
	Year
Y	A full numeric representation of a year, 4 digits
y	A two digit representation of a year
	Month
m	Numeric representation of a month, with leading zeros, 2 digits
n	Numeric representation of a month, without leading zeros, 1 through 12
F	A full textual representation of a month, such as January or March
M	A short textual representation of a month, three letters, Jan through Dec
t	Number of days in the given month 28 through 31
	Week
W	ISO-8601 week number of year, weeks starting on Monday
	Day
d	Day of the month, 2 digits with leading zeros
j	Day of the month without leading zeros, 1 to 31
l	(lowercase 'L') A full textual representation of the day of the week
D	A textual representation of a day, three letters Mon through Sun
w	Numeric representation of the day of the week 0 (for Sunday) through 6
N	ISO-8601 numeric representation of the day of the week 1 (for Monday) through 7
z	The day of the year (starting from 0), 0 through 365

Definitions

Swedish sources on the construction and usage of id numbers:

• Folkbokföringslagen
• Statistiska centralbyrån on personal identity numbers

Symfony Bundle

To use as validation rules in your Symfony project see the third party package IdentityNumberValidatorBundle.