PHP/native/BackedEnum

BackedEnum pseudointerface manual page: The BackedEnum interface

Note that this (pseudo)interface cannot actually be implemented as a standard class; it can only be (pseudo)implemented by declaring a backed enum.

Definition

interface BackedEnum extends UnitEnum {

   static function from(int|string $value): static;
   static function tryFrom(int|string $value): ?static;

   string|int $value; // pseudocode

   // INHERITED from UnitEnum (unmodified):

   static function cases(): array;
   string $name; // pseudocode
}

The member-variables are labelled "pseudocode" because a normal interface can't declare member-variables.