I second getting rid of write-onle - the only real case I can think of, is something like a password property on a user/account model-type, which gets encrypted and thus can't be read, and as Amaury pointed out, that should be a setPassword() method instead, perhaps even a separate UserPasswordService component. Certainly not an accessor.
As for read-only, I strongly advice against overloading the const keyword with an entirely new meaning, if that's what you're suggesting? Just drop the idea of read-only altogether, please - it's so marginally useful in the first place, unconventional compared to other languages, and will just get in the way. For most properties that only have a read-accessor, it won't even make any sense for someone to try to extend that with a write-accessor. And as said, if you want to keep the internal value safe from write, just declare the actual property as private. ---------- Forwarded message ---------- From: Amaury Bouchard <ama...@amaury.net> To: Clint Priest <cpri...@zerocue.com> Cc: "internals@lists.php.net" <internals@lists.php.net> Date: Sat, 20 Oct 2012 10:09:35 +0200 Subject: Re: [PHP-DEV] [RFC] Accessors v1.1 -> v1.2 Summary read-only / write-only keywords "no equivalent replacement has been suggested" => ouch read-only => const write-only => shouldn't exists. A write-only accessor is just a method disguised in property. It's not a good idea to allow: $obj->prop = 3; when the meaning is: $obj->meth(3);