Re: Notice on non existing array key (on a boolean)

On 25.08.2015 at 15:48, Sherif Ramadan wrote: > You're right. The notice is triggered by array_push behavior only, which > means that $x = true; echo $x['foo']; doesn't trigger the notice, which is > the same as your code above. Only write operations have historically > resulted in this notice. > > I would agree that providing the notice would help someone debugging > potentially buggy code like this. Not sure if this is something we can > squeeze into 7.0.0 release at this point, but I would consider it a bug fix > with BC rather than something that should be subject to current feature > freeze. See also <https://bugs.php.net/bug.php?id=54556>. > On Tue, Aug 25, 2015 at 9:35 AM, Nicolai Scheer <nicolai.scheer@gmail.com> > wrote: > >> Hi all, >> >> I'd expect the following code to throw a notice/warning: >> >> $x = true; >> $y = $x['foo']; >> >> It executes completely silently. >> $y is NULL afterwards, which is expected, since the right hand side of >> the assignment is undefined. >> >> If $x was an array (e.g. empty array), a E_NOTICE would be emitted. >> >> Can anyone shed a light on this behaviour? If accessing non existing >> array keys is worth a notice, shouldn't accessing an array index on a >> non array be worth a notice as well (maybe even a warning)? >> >> The other way round emits a warning (i.e. writing to an array key on a >> non array): >> >> $x = true; >> $x['foo'] = 'bar'; >> >> Warning: Cannot use a scalar value as an array ... >> >> Thanks for any insight, -- Christoph M. Becker