ID: 44658
User updated by: mo at nevali dot net
Reported By: mo at nevali dot net
Status: Bogus
Bug Type: Arrays related
Operating System: FreeBSD 6
PHP Version: 5.2.5
New Comment:
Thank you!
That makes perfect sense, and explains what jani meant by references
are not pointers.
Previous Comments:
------------------------------------------------------------------------
[2008-04-23 07:37:52] [EMAIL PROTECTED]
[EMAIL PROTECTED] /var/cvs/php.net/php5.3-dev $ sapi/cli/php -r '$v = 2; $a =
array("k" => &$v); $b = $a; $b["k"]++; echo $v;'
3
When arrays get copied, the elements that are references are kept as
references.
------------------------------------------------------------------------
[2008-04-22 22:36:07] mo at nevali dot net
Okay, let me rephrase, because I'm obviously not being clear about
something or other.
Line 12 of the testcase is the following:
$this->stuff =& $this->thing['stuff'];
If this line is commented out, the output changes (to my expected
result). If this line is uncommented, the output is as per your
expected result.
Foo::$stuff is not referenced anywhere (beyond its initial
declaration) except for this line.
Your statement references are not pointers to me, as an experienced
C programmer, suggests that under no circumstances, except for the
assignment of object instances, should the following result in $b
being a reference to $a:
$b = $a;
In the testcase (tested on PHP 5.2.5 with debugging enabled, and PHP
5.1.6 with debugging enabled, both command-line and Apache 2 Handler
SAPIs), line 24 behaves as though it were written:
$this->thing2 =& $foo->thing;
if, and only if, line 12 is uncommented. Otherwise, it behaves as it
is written:
$this->thing2 = $foo->thing;
There is NO documented reason why this behaviour should occur.
Now, if you _still_ think this is bogus, I'd really appreciate an
explanation, with appropriate references to the documentation, as to
why it's bogus, because if it is I'm evidently a simpleton who can't
read and I'm now becoming slightly frustrated by both this issue and
the unhelpfully terse responses to it.
------------------------------------------------------------------------
[2008-04-21 06:23:59] [EMAIL PROTECTED]
FYI: I did run your (bogus) testcase.
------------------------------------------------------------------------
[2008-04-11 08:40:49] mo at nevali dot net
If this bug has been marked as bogus, does it mean it's going to get
summarily ignored from here on in?
It would be nice if somebody could actually try _running_ the test-case
instead of dismissing it out of hand; aspects of the behaviour are
clearly incorrect (notably the inconsistency), even if it's the case
that my summary of it is wrong.
------------------------------------------------------------------------
[2008-04-07 12:37:27] mo at nevali dot net
My apologies, in my previous follow-up, I meant to write $foo->stuff
where I wrote $foo->thing2. In my testcase, there's no such property
as $foo->thing2!
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http://bugs.php.net/44658
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