Edit report at https://bugs.php.net/bug.php?id=63087&edit=1
ID: 63087
Comment by: ni...@php.net
Reported by: charlie at charliesomerville dot com
Summary: Passing a reference to a function does not work when
parentheses are used
Status: Feedback
Type: Bug
Package: Scripting Engine problem
Operating System: Linux
PHP Version: master-Git-2012-09-14 (Git)
Block user comment: N
Private report: N
New Comment:
@charlie: You can find a detailed description of why this happens here:
http://stackoverflow.com/questions/6726589/parentheses-altering-semantics-of-function-call-result/6732876#6732876
This is once again an issue caused by the AST-less compilation process.
(https://wiki.php.net/rfc/ast_based_parsing_compilation_process)
Previous Comments:
------------------------------------------------------------------------
[2012-09-14 09:56:49] larue...@php.net
wrong status.
------------------------------------------------------------------------
[2012-09-14 09:55:23] larue...@php.net
it will be appreciated, thanks
------------------------------------------------------------------------
[2012-09-14 09:52:14] charlie at charliesomerville dot com
If you leave the ticket open, I might try my hand at fixing this.
------------------------------------------------------------------------
[2012-09-14 09:45:55] larue...@php.net
yes, this is a knew issue, the similar thing will also happen while you use '@';
you will get a STRICT WARNING about this. right?
I'd like mark this as wont'fix, it's a compiler issue, fix this is expensive
------------------------------------------------------------------------
[2012-09-14 07:01:04] charlie at charliesomerville dot com
Description:
------------
To be specific, this only occurs when passing a reference returned by a
function
into another function that takes a reference.
This behaves as expected with a variable instead of a function call, so I
believe
this is a bug.
Test script:
---------------
<?php
function &return_a() {
global $a;
return $a;
}
$a = [1,2,3];
array_shift(return_a());
print_r($a);
$a = [1,2,3];
array_shift((return_a()));
print_r($a);
Expected result:
----------------
Array
(
[0] => 2
[1] => 3
)
Array
(
[0] => 2
[1] => 3
)
Actual result:
--------------
Array
(
[0] => 2
[1] => 3
)
Array
(
[0] => 1
[1] => 2
[2] => 3
)
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=63087&edit=1
