On Thu, Aug 29, 2013 at 11:33 AM, Nikita Popov <nikita....@gmail.com> wrote:
> Hi internals!
>
> This is a spinoff from the variadics thread. Quoting Stas:
>
> > I also think this:
> > public function query($query, ...$params)
> > public function query(...$params)
> > should be legal too.
>
> This is a general issue in PHP that we might want to fix: Currently a
> method A is not compatible with a method B if A has less arguments than B.
>
> E.g. both of the following are incompatible signatures:
>
> public function foo($bar)
> public function foo()
>
> public function foo($bar = NULL)
> public function foo()
>
I dont really agree.
One could use reflection on the parameter, thus expecting it to be here on
a child instance :
class Foo
{
public function bar($arg = null) { }
}
class Foo2 extends Foo
{
public function bar() { }
}
$o = new Foo; /* Switching to Foo2 will lead to an Exception */
$r = new ReflectionParameter(array($o, 'bar'), 'arg');
echo $r->getName();
PS : I remember having a long discussion with Gustavo, some time ago, about
LSP in PHP ; and we could not agree on some points, particularly concerning
optional parameters.
Julien.Pauli
