What does this variable means?

    public const USER_ROLE_ANY = 'any';
    public const USER_ROLE_GUESTS = 'guests';
    public const USER_ROLE_USERS = 'users';
    public const USER_ROLE_ADMIN = 'admin';
    public const USER_ROLE_DEVELOPER = 'developer';
    public const USER_ROLE_OWNER = 'owner';
    public const USER_ROLE_APPS = 'apps';
    public const USER_ROLE_SYSTEM = 'system';

Developers are confused about the meaning of certain variables in the code. They are asking about the definitions of USER_ROLE_ADMIN, USER_ROLE_DEVELOPER, USER_ROLE_OWNER, USER_ROLE_APPS, USER_ROLE_SYSTEM in the code snippet. Solution: - USER_ROLE_ADMIN: Represents the admin user role. - USER_ROLE_DEVELOPER: Represents the developer user role. - USER_ROLE_OWNER: Represents the owner user role. - USER_ROLE_APPS: Represents the apps user role. - USER_ROLE_SYSTEM: Represents the system user role.