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Date: Fri, 26 Oct 2018 19:03:03 +0300
Message-ID: <CAL0xaBFTPK1i0XomCZ+PxBWxYegBVH=_k7pU82Qt7etU1efphw@mail.gmail.com>
To: Kalle Sommer Nielsen <kalle@php.net>
Cc: Larry Garfield <larry@garfieldtech.com>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Idea for better function callbacks (another syntactic sugar)
From: arvids.godjuks@gmail.com (Arvids Godjuks)

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=D0=BF=D1=82, 26 =D0=BE=D0=BA=D1=82. 2018 =D0=B3. =D0=B2 18:57, Kalle Somme=
r Nielsen <kalle@php.net>:

> Den fre. 26. okt. 2018 kl. 17.43 skrev Larry Garfield <
> larry@garfieldtech.com>:
> > I believe the proposal for short lambas (which should get resurrected a=
t
> some
> > point) would handle this case well enough as well as help a dozen other
> > things.  To wit:
> >
> > array_filter($names, |$x| =3D=3D> trim($x))
>
> I still fail to see why it would be considered to have that over a
> perfectly encapsulted string for a callback, using a lambda/closure is
> just an extra runtime call for syntax sugar, that seems poor in my
> eyes.
>

Right click on `function::trim` - Find Usages. Basically allows to find all
usages of a given function, including the callback usage.

>
> What would be ideal here, would be for functions to be first class
> citizens in callback contexts, like in C to avoid the quotation,
> however it clashes with constants. A hack you can do in userland could
> be something like:
>
> const trim =3D 'trim';
> array_filter($names, trim);
>
>
>
> --
> regards,
>
> Kalle Sommer Nielsen
> kalle@php.net
>
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>
>

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Arv=C4=ABds Godjuks

+371 26 851 664
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