I realized after sending the initial E-Mail that there might be more breaking 
changes than I thought, like the one you suggested.

The same thing actually happens for bools, ints and floats:
https://3v4l.org/jvVbO

I wouldn’t depend on this behaviour since you’d get errors depending on what is 
returned, like an empty array, a string, an object or resource.

Regards


On 20 Sep 2017, 19:18 +0200, li...@rhsoft.net <li...@rhsoft.net>, wrote:
>
>
> Am 20.09.2017 um 19:06 schrieb ilija.tov...@me.com:
> > Hi everybody!
> >
> > To my surprise, I noticed today that an array access on a `null` value 
> > returns `null` without any warning whatsoever.
> > Accessing the property of a `null` value gives you a notice, while calling 
> > a function on that `null` value gives you a fatal error.
> >
> > https://3v4l.org/ZSZHN
> >
> > This is pretty inconsistent. IMO all of these should be fatal errors, 
> > although I realize that might be a bit drastic for PHP 8.
> > We should at least give the user a notice when using array access on a 
> > `null` value.
> >
> > Any thoughts?
> wouldn't that break code like below which is IMHO the best usecase of
> the PHP 5.6 feature that you can directly access a array field of a
> function result and the type-casting encsues that the return-type is
> always int
>
> function GetSKatMaxSort(int $archive=0): int
> {
> return (int)mysqli_fetch_row($this->db->query("select SQL_NO_CACHE
> max(ssort) from {$this->db->table} where sarchive=$archive", 1))[0];
> }
>
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