On Mon, Sep 19, 2011 at 3:00 AM, Stas Malyshev <smalys...@sugarcrm.com> wrote:
> Hi!
>
> On 9/18/11 5:42 PM, Pierre Joye wrote:
>>
>> But this exact example works, only the similar case using abstract
>> will fail, and it makes to fail here as an abstract method is only the
>
> It produces E_STRICT for regular functions, but for some reason not for
> ctors, but fatal error for abstract ctors. Quite weird.
>
>> declaration, the implementation being done in the child class (bar
>> extends foo). This is the concept of 'abstract', see it like the
>> declaration and implementation in C. The PHP documentation is also
>
> No, it's not at all like declaration and implementation in C. In C,
> declaration and implementation relate to the SAME entity. In PHP, abstract
> method and its (multiple, inependent) implementations are different
> entities. Moreover, this is prohibited too:
It is the same in C. A class extending an abstract class (or method)
does not extend it per se but implement it. Just like the foo(int a,
float b); is the declaration (abstract) and foo(int a, float b) {
return a * b;= the extended class. This is the basic of abstract
methods/classes.
> This makes absolutely no sense, as there's no reason why MoreExtendedClass
> can't extend domain of ExtendedClass. However, for some reason it is
> prohibited.
Not willing to understand the declaration idea will only block this
thread forever.
--
Pierre
@pierrejoye | http://blog.thepimp.net | http://www.libgd.org
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