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Date: Sun, 17 Apr 2011 01:14:55 +0200
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To: Ben Schmidt <mail_ben_schmidt@yahoo.com.au>
CC: Adam Richardson <simpleshot@gmail.com>, 
 PHP Development <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Implicit isset/isempty check on short-ternary operator
From: keisial@gmail.com ("=?ISO-8859-1?Q?=C1ngel_Gonz=E1lez?=")

Ben Schmidt wrote:
>>> $var = $arr['key'] ?? : 'empty';
>
> Also note this is possible with the recent proposal Hannes and I were
> discussing. It simply looks like
>
> $var = $arr?['key'] ?: 'empty';
>
> The ?[ avoids notices and the ?: works as it always has.
>
> Ben.

If it was going to be ?[, I'd much prefer $arr['key'?]. It was proposed as
$arr[?'key'] instead to avoid a backtracking (would that really be
noticeable?
I'd prefer readibility), but ?[ would have the same problem.