README

This package contains types and classes for german area keys AGS (Amtlicher Gemeindeschlüssel) and ARS (Amtlicher Regionalschlüssel).

You can download the latest record of all german administrative areas from:

https://www.destatis.de/DE/Themen/Laender-Regionen/Regionales/Gemeindeverzeichnis/_inhalt.html

How to use

AGS

Provides a class which represents an Amtlichen Gemeindeschlüssel data object. You can create a new object by passing each part of an AGS via constructor or parse an AGS String via static fromString method.

// pass each part of AGS as constructor parameter
$ags = new AGS("14", "7", "30", "070");

// pass full AGS string via parseString method
$ags = AGS::fromString("14730070");

ARS

Provides a class which represents an Amtlichen Regionalschlüssel data object. Similar to the AGS class you can pass each part of an ARS via constructor parameter or parse an ARS String via static fromString method.

// pass each part of ARS as constructor parameter
$ars = new ARS("14", "7", "30", "0070", "070");

// pass full ARS string via parseString method
$ars = ARS::fromString("147300070070");

Technically an ARS is an AGS with a little more information (Verbandsschlüssel). So it is possible to extract an AGS from an ARS. Conversely, you cannot create an ARS from an AGS because the lack of information (Verbandsschlüssel).

$ars = new ARS("14", "7", "30", "0070", "070");
$ags = ars->toAGS();
    
echo (string)$ags;
// prints: "14730070"