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Date: Mon, 23 Jul 2012 06:23:52 +0300
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To: Alex Aulbach <alex.aulbach@gmail.com>
Cc: Rafael Dohms <listas@rafaeldohms.com.br>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Implicit isset in ternary operator
From: g.b.yahav@gmail.com (Yahav Gindi Bar)

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On Mon, Jul 23, 2012 at 6:12 AM, Alex Aulbach <alex.aulbach@gmail.com>wrote:

> Do we really need that as operator? Why not using new functions for
> special cases.
> Don't see much difference between
>
> $a = $b ?: $c;
>
> and (for example I used "i" for "if")
>
> $a = _i($b, $c);
>
> Just a manner of getting accustomed to it.
>
> A little bit more thinking: This could be implemented directly into
> any program/project, so it is a manner of how to use PHP and not of
> why it isn't added to the language.
>
> PS: Would it be possible to implement functions like ":?()" or "!?()"
> ? Currently this is not allowed by syntax.
>
>
> 2012/7/18 Rafael Dohms <listas@rafaeldohms.com.br>:
> > $width = $config['width'] ?: 300;
> >
> > The only reason for this to not work is: it throws a notice if the array
> > key is not there (which is the case we are covering anyway)
> >
> > This is basically because the ternary operator does not do a internal
> > implicit isset, only an empty.
> >
> > Does this seem like a possible improvement we can work on? Anyone
> > interested in championing the change?
>
> --
> Alex Aulbach
>
> --
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php
>
> I do think that such operator will be great.
I think that you can compare the situation to the short if syntax ($a > $b
? $c : $d) - you could use a function too that'll do the same thing, but
the syntax is very useful, readable and great.

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