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
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
bIn 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