Minor tweaks and updates

.github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                php-version: ['8.0', '8.1', '8.2']
+                php-version: ['8.1', '8.2', '8.3']
 
         steps:
             - uses: actions/checkout@v2

README.md

@@ -57,6 +57,8 @@ function handleHttpRequest(HttpRequestMethod $method, $url, $body = null)
 }
 ```
 
+__Note:__ for simple enumerations, it is recommended to use PHPs native backed enums.
+
 [c++ enumerated types]: https://en.wikipedia.org/wiki/Enumerated_type#C.2B.2B
 
 ## Accessing enumeration members
@@ -95,7 +97,7 @@ in this implementation are Multitons. The `AbstractEnumeration` class simply
 defines its members based upon class constants.
 
 Here is an example borrowed from the Java documentation for its enum types. The
-following multiton describes all of the planets in our solar system, including
+following multiton describes all the planets in our solar system, including
 their masses and radii:
 
 ```php
@@ -138,7 +140,8 @@ final class Planet extends AbstractMultiton
         new static('SATURN',  5.6851e26, 6.0268e7);
         new static('URANUS',  8.6849e25, 2.5559e7);
         new static('NEPTUNE', 1.0244e26, 2.4764e7);
-        // new static('PLUTO',   1.31e22,   1.180e6);
+        // Pluto will always be a planet to me!
+        new static('PLUTO',   1.31e22,   1.180e6);
     }
 
     /**
@@ -160,7 +163,7 @@ final class Planet extends AbstractMultiton
 ```
 
 The above class can be used to take a known weight on earth (in any unit) and
-calculate the weight on all of the planets (in the same unit):
+calculate the weight on all the planets (in the same unit):
 
 ```php
 $earthWeight = 175;

composer.json

@@ -17,7 +17,7 @@
         }
     ],
     "require": {
-        "php": ">=8.0"
+        "php": ">=8.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^10.4"

phpunit.xml.dist

@@ -15,7 +15,7 @@
   <logging/>
   <php>
     <ini name="error_reporting" value="-1"/>
-    <ini name="XDEBUG_MODE" value="coverage" />
+    <ini name="xdebug.mode" value="coverage" />
   </php>
   <source>
     <include>

src/AbstractMultiton.php

@@ -473,6 +473,13 @@ final public function __unserialize(array $data): void
         throw new RuntimeException(sprintf('Cannot unserialize instances of %s', self::class));
     }
 
+    final public function __set(string $name, $value): void
+    {
+    }
+
+    final public function __unset(string $name): void
+    {
+    }
 
     /**
      * Registers the supplied member.