Re: Ternary operator associativity

On Thu, Apr 30, 2020 at 1:12 PM Ryan Jentzsch <ryan.jentzsch@gmail.com> wrote: > Is there a possibility this can be fixed in version 8? From > http://phpsadness.com/sad/30 listed as an outright bug (I > don't have > the C skills to fix this. I am just raising this as an issue that has > been a criticism of PHP for many years now with a new major version > upcoming that could allow for a b/c of this significance to improve > the language): > > The ternary operator is left-associative and therefore behaves > entirely incorrectly: > > $ cat ternary.php > <?php > echo (FALSE ? "a" : FALSE ? "b" : "c")."\n"; > echo (FALSE ? "a" : TRUE ? "b" : "c")."\n"; > echo (TRUE ? "a" : FALSE ? "b" : "c")."\n"; > echo (TRUE ? "a" : TRUE ? "b" : "c")."\n"; > ?> > > $ php ternary.php > c > b > b > b > > In any other language with a ternary operator, you can stack them and > build an if-elseif-elseif-else expression: > > $ cat ternary.pl > #!/usr/bin/perl -w > use strict; > > print +(0 ? "a" : 0 ? "b" : "c")."\n"; > print +(0 ? "a" : 1 ? "b" : "c")."\n"; > print +(1 ? "a" : 0 ? "b" : "c")."\n"; > print +(1 ? "a" : 1 ? "b" : "c")."\n"; > > $ perl ternary.pl > c > b > a > a > Please see https://wiki.php.net/rfc/ternary_associativity. Regards, Nikita