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To: Robert Stoll <php@tutteli.ch>
Cc: Philip Sturgeon <pjsturgeon@gmail.com>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Introducing "Array Of" RFC
From: pollita@php.net (Sara Golemon)

>> * Typed arrays - Arrays are a special primitive which can be typed as
>> implicitly or explicitly numerically indexed, or associative, and to
>> specific types:
>> array<Tv> or array<Tk,Tv>
>>
>
> Out of curiosity, does HHVM support both use cases: NULL as a valid member and NULL as an error?
> If so, how does the syntax differ?
>
That's captured via Nullable types.

array<Foo> is an array of Foo objects (nulls not allowed).
array<?Foo> is an array of (Foo Objects or NULL)

-Sara