Req #72589 [Opn]: "OR" is used differently
Edit report at https://bugs.php.net/bug.php?id=72589&edit=1
ID: 72589
Updated by: cmb@php.net
Reported by: xxalfa at gmail dot com
Summary: "OR" is used differently
Status: Open
Type: Feature/Change Request
Package: *General Issues
Operating System: macOS 10.11.5
PHP Version: 7.0.8
Block user comment: N
Private report: N
New Comment:
And all that so one could write
$test or exit;
instead of
if ($test) exit;
Doesn't make sense to me.
Previous Comments:
------------------------------------------------------------------------
[2016-07-13 10:41:13] nikic@php.net
@kalle: There's not really a technical problem here, just needs a change in grammar and dummy
return value.
This will need an RFC though. I'm personally not a fan of this, because I consider it bad
style.
Also consider what specifically you want to allow. Do you want to special-case the "or"
operator (bad idea imho) or do we end up allowing "1 + throw $x" (consistent, but meh)?
Also consider the precedence of these new "operators". What does "true or return 1 or
return 2" do? Is it "true or (return 1) or (return 2)" or is it "true or (return
(1 or (return 2)))?
Lastly, consider which statements you want to convert to expressions. All "jump"
operations, i.e. throw, return, break, continue, goto? Or more than that? Do you want to allow
"true or unset($var)"? Do you want to allow "true or foreach ($x as $y) { ...
}"? Etc.
------------------------------------------------------------------------
[2016-07-13 10:19:56] cmb@php.net
Related to request #31627.
------------------------------------------------------------------------
[2016-07-13 01:23:40] kalle@php.net
I've personally wished for this for a long time, especially the or throw part.
Assigning it to you Nikita for some input, can this be implemented in a sensible manner with ZE?
------------------------------------------------------------------------
[2016-07-12 18:51:46] xxalfa at gmail dot com
Description:
------------
I want to "OR" like to use otherwise. I like the program structure with "GOTO"
and "THROW". Is this sensible?
Test script:
---------------
<?php
//-------------------------------------------------
// TEST "OR"
//-------------------------------------------------
$test = true;
//-------------------------------------------------
// EXIT
//-------------------------------------------------
// $test == true or exit;
// echo 'TEST TRUE';
//-------------------------------------------------
// DIE
//-------------------------------------------------
// $test == true or die ( 'TEST END' );
// echo 'TEST TRUE';
//-------------------------------------------------
// GOTO
//-------------------------------------------------
// Parse error: syntax error, unexpected 'goto' (T_GOTO) in /xamppfiles/htdocs/1.php
on line 32
// $test == true or goto TEST_END;
// echo 'TEST TRUE';
// TEST_END:
// echo 'TEST END';
//-------------------------------------------------
// THROW
//-------------------------------------------------
// Parse error: syntax error, unexpected 'throw' (T_THROW) in /xamppfiles/htdocs/1.php
on line 42
// try
// {
// $test == true or throw new Exception( 'TEST ERROR', 1 );
// echo 'TEST TRUE';
// }
// catch ( Exception $exception )
// {
// echo $exception->getMessage();
// }
//-------------------------------------------------
// Apache Version
//-------------------------------------------------
// Apache/2.4.18 (Unix) OpenSSL/1.0.2h PHP/7.0.8 mod_perl/2.0.8-dev Perl/v5.16.3
?>
------------------------------------------------------------------------
--
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