Addimg except and only for Enum

Info.php

@@ -6,6 +6,8 @@
 
 use ReflectionEnum;
 
+use UnitEnum;
+
 use function array_column;
 use function array_search;
 use function count;
@@ -66,4 +68,34 @@ public static function nameOf(string|int $value): ?string
             default => $res,
         };
     }
+
+    /**
+     * Returns the list of cases not including the enum instance passed to the method call.
+     *
+     * @return array<UnitEnum>
+     */
+    public static function except(UnitEnum ...$values): array
+    {
+        return array_values(
+            array_filter(
+                static::cases(),
+                fn (UnitEnum $enum) => !in_array($enum, $values, true)
+            )
+        );
+    }
+
+    /**
+     * Returns the list of cases including only the enum listed in the method call if they exist.
+     *
+     * @return array<UnitEnum>
+     */
+    public static function only(UnitEnum ...$values): array
+    {
+        return array_values(
+            array_filter(
+                static::cases(),
+                fn (UnitEnum $enum) => in_array($enum, $values, true)
+            )
+        );
+    }
 }

InfoTest.php

@@ -18,6 +18,8 @@ public function it_can_get_information_from_a_pure_enumeration(): void
         self::assertSame(['Top', 'Down', 'Left', 'Right'], Direction::names());
         self::assertSame([], Direction::values());
         self::assertNull(Direction::nameOf('Up'));
+        self::assertSame([Direction::Down], Direction::only(Direction::Down));
+        self::assertSame([Direction::Left, Direction::Right], Direction::except(Direction::Top, Direction::Down));
     }
 
     #[Test]