Re: [PHP-DEV] [RFC] Implicit isset() in Shorthand Ternary Operator

On 07/09/14 14:25, Andrea Faulds wrote:
> 
> On 7 Sep 2014, at 13:22, Sherif Ramadan <[email protected]>
> wrote:
> 
>> I've played around with this branch for a bit and seems reasonable,
>> passes the tests, and doesn't seem to have any serious
>> issues/memories leaks AFAICT.
> 
> There’s actually a quite serious issue just now, which is that it
> evaluates the first operand twice if it’s not empty. This is because
> $a ?: $b is expanded to empty($a) ? $b : $a, such that if you did
> something which mutates state in there, it’d happen twice. This is
> obviously not good, and I’m going to figure out how to fix this.
> 

This could very well be the reason why it is like it is today.

-- 
Regards,
Mike