Re: [RFC] unset(): return bool if the variable has existed
Am 06.03.2013 um 22:47 schrieb "Ferenc Kovacs" <[email protected]>:
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>
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> On Wed, Mar 6, 2013 at 10:41 PM, Bob Weinand <[email protected]> wrote:
> Am 06.03.2013 um 22:38 schrieb "Ferenc Kovacs" <[email protected]>:
>
>>
>> On Wed, Mar 6, 2013 at 10:10 PM, Bob Weinand <[email protected]> wrote:
>> Hi!
>>
>> As this seem to require a RFC, here is it:
>>
>> https://wiki.php.net/rfc/unset_bool
>>
>> Please feedback,
>>
>> Bob Weinand
>>
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>> PHP Internals - PHP Runtime Development Mailing List
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>>
>>
>> unset is not a function, but a language construct, and there is at least one similar
>> construct which doesn't return anything (eg. not returning NULL, but syntax error when used in
>> a return context): echo
>>
>> --
>> Ferenc Kovács
>> @Tyr43l - http://tyrael.hu
>
>
> Echo doesn't behave as a function as it doesn't need parenthesis etc. (and has an
> equivalent which can be used as alternative: print)
>
> I'd consider unset as a function in form of a language construct.
>
> Bob Weinand
>
> I'm not sure that we should change our terminology based on whether or not a language
> construct requires the parenthesis or not.
> there are other differences in behavior, for example $foo =
> "print";$foo("bar"); won't work even thought that print("bar");
> look likes as a function call.
>
>
> --
> Ferenc Kovács
> @Tyr43l - http://tyrael.hu
Ok; I think it's better not to argue about this...
Bob Weinand
Thread (21 messages)