> On Jul 16, 2021, at 6:12 AM, Bruce Weirdan <weir...@gmail.com> wrote:
> 
> On Fri, Jul 16, 2021 at 9:45 AM Eugene Sidelnyk <zsidel...@gmail.com> wrote:
> 
>> Readonly properties are really useful for DDD, where everything is going to
>> be immutable. It promotes best practices. However for people to use it,
>> syntax should be concise and brief.
> 
> If every property of the class is readonly it would probably be better
> to declare that with a class modifier.
> 
> E.g.
> 
> ```php
> readonly class Entity {
>    public int $count;
>    public string $data;
> }
> ```

Having a "readonly" class where the properties are read-only by default makes 
sense to me, but maybe the better way to do it is with an attribute?

#[Readonly]
class Entity {
   public int $count;
   public string $data;
}

OTOH, that would be inconsistent with using `readonly` as a keyword for 
properties. 

-Mike
P.S. Maybe readonly properties should be implemented with an attribute instead 
of a keyword?  But then that would be opening a can of worms...
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