Merge pull request #66 from Johannestegner/hotfix/get-age

Fix GetAge with negative values.
Add Clock to abstract away DateTime.

Author: Johannestegner

README.md

@@ -41,10 +41,11 @@ composer require personnummer/personnummer
 When a personnummer is invalid a PersonnummerException is thrown.
 
 ## Options
-| Option                  | Type | Default |         Description         |
-|-------------------------|:-----|:--------|:---------------------------:|
-| allowCoordinationNumber | bool | true    | Accept coordination numbers |
-| allowInterimNumber      | bool | false   | Accept interim/T numbers    |
+| Option                  | Type                     | Default                 | Description                       |
+|-------------------------|:-------------------------|:------------------------|:----------------------------------|
+| allowCoordinationNumber | bool                     | true                    | Accept coordination numbers       |
+| allowInterimNumber      | bool                     | false                   | Accept interim/T numbers          |
+| clock                   | Psr\Clock\ClockInterface | Personummer\SystemClock | Clock used for time calculations  |
 
 ## Examples
 

composer.json

@@ -34,7 +34,8 @@
     "issues": "https://github.com/personnummer/php/issues"
   },
   "require": {
-    "php": ">=8.1"
+    "php": ">=8.1",
+    "psr/clock": "1.0.0"
   },
   "require-dev": {
     "ext-json": "*",