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Date: Sat, 17 Sep 2011 23:15:20 +0800
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To: Ferenc Kovacs <tyra3l@gmail.com>
Cc: Nikita Popov <nikita.ppv@googlemail.com>, RQuadling@gmail.com, 
	PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] __constructor parameter limitations.
From: laruence@php.net (Laruence)

Hi:
  this is really a big bc break...(fatal error)
  is there any reason for us to really change this?   In Yaf, there
are a lot of Abstract classes,  the subclass only need declared there
argument when they really need it.

  and I really not think this change is good one,  the Intenal class
can not be saw by userland(sure, doc, reflection), so they only get
the FATAL ERROR(you are wrong) but will never be told how should they
to do..

thanks

2011/9/17 Ferenc Kovacs <tyra3l@gmail.com>:
> maybe Richard referring to https://bugs.php.net/bug.php?id=3D55085 ?
> but those change only affects the abstract classes.
>
> Tyrael
>
> On Sat, Sep 17, 2011 at 3:43 PM, Nikita Popov <nikita.ppv@googlemail.com>=
 wrote:
>> Hi Richard!
>>
>> Which change are you talking about? I just tried doing:
>> =C2=A0 =C2=A0<?php
>> =C2=A0 =C2=A0class A =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 { public functio=
n __construct($a) =C2=A0 =C2=A0 { } }
>> =C2=A0 =C2=A0class B extends A { public function __construct($a, $b) { }=
 }
>> And it worked on 5.4 Beta 1 without errors.
>>
>> Nikita
>>
>> On Sat, Sep 17, 2011 at 3:27 PM, Richard Quadling <rquadling@gmail.com> =
wrote:
>>> Hi.
>>>
>>> With the recent BC with regard the locking of the constructor's
>>> signature for subclasses, what is the expected mechanism for allowing
>>> a subclass to have additional parameters?
>>>
>>> You can always supply them and use func_get_args() / func_num_args() /
>>> etc. to read them.
>>>
>>> It would seem that the limitation restricts the capabilities. I'm not
>>> a purist. Software development is a compromise between purity and
>>> getting the job done in an efficient and understandable manner.
>>>
>>> By allowing undocumented parameters to the constructor (due to the
>>> enforced signature), this would seem to break things on a different
>>> front (I can't docblock non defined parameters for examples).
>>
>> --
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>>
>
>
>
> --
> Ferenc Kov=C3=A1cs
> @Tyr43l - http://tyrael.hu
>
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> PHP Internals - PHP Runtime Development Mailing List
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>
>



--=20
Laruence =C2=A0Xinchen Hui
http://www.laruence.com/