Re: Re: PHP7 Homework for everyone reading this list

On Sat, Jan 24, 2015 at 6:40 PM, Xinchen Hui <laruence@php.net> wrote: > Hey: > > On Sun, Jan 25, 2015 at 1:26 AM, Juan Basso <jrbasso@gmail.com> wrote: > > I step in another failing test that I would like to confirm if that is an > > issue or it was an accepted backward incompatibility due the phpng (I > > couldn't find anything on the RFC and the UPGRADING regarding that). > > > > Here is the code: http://3v4l.org/h7TEV > > > > The issue happens when the variable used to split data using list() is > also > > part of the variables that will receive the values. In the case of my > > example, $data contains the data to be splitted and also will receive the > > first value. > > > > Is that an issue or BC break? > this is a knew BC break, please read "Changes to list()" section in > the AST RFC https://wiki.php.net/rfc/abstract_syntax_tree > > thanks > We also document this on http://php.net/list: > Modification of the array during list() execution (e.g. using list($a, $b) = $b) results in undefined behavior. If we want, we could make this defined behavior (we would have to disable CV optimization on the $b fetch). I don't really care personally. Nikita