Enumerations may also have static methods. The use for static methods on the enumeration itself is primarily for alternative constructors. E.g.:
<?phpenum Size{ case Small; case Medium; case Large; public static function fromLength(int $cm): static { return match(true) { $cm < 50 => static::Small, $cm < 100 => static::Medium, default => static::Large, }; }}?>
Static methods may be public, private, or protected, although in practice private and protected are equivalent as inheritance is not allowed.