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Bug #72779 Passing an array by reference creates references of its values
Submitted: 2016-08-08 07:18 UTC Modified: 2016-08-08 10:18 UTC
From: lars dot schultz at toolpark dot com Assigned: cmb (profile)
Status: Not a bug Package: Variables related
PHP Version: 7.0.9 OS: Linux
Private report: No CVE-ID: None
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 [2016-08-08 07:18 UTC] lars dot schultz at toolpark dot com 
Description:
------------
PHP Version 7.0.3-1~dotdeb+8.1

Passing the content of an array by reference, replaces the content with a reference to it.

Getting expected behaviour in the following Versions:
PHP Version 5.3.3-7+squeeze23
PHP Version 5.4.45

Test script:
---------------
function sub(&$data){}

$data = array();
sub($data['nested']);

echo serialize(array($data,$data));

Expected result:
----------------
a:2:{i:0;a:1:{s:6:"nested";N;}i:1;a:1:{s:6:"nested";N;}}

Actual result:
--------------
a:2:{i:0;a:1:{s:6:"nested";N;}i:1;a:1:{s:6:"nested";R:3;}}

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 [2016-08-08 07:28 UTC] laruence@php.net 
according to https://3v4l.org/i74nS 

this bug should be fixed already
 [2016-08-08 07:36 UTC] lars dot schultz at toolpark dot com
-Status: Open +Status: Closed -PHP Version: 7.0.9 +PHP Version: 7.0.3
 [2016-08-08 07:36 UTC] lars dot schultz at toolpark dot com 
sorry, had no opportunity to test it on other versions...or rather: did not know that I had the opportunity to test it on other versions. Sorry for the bother and thanks for the hint.
 [2016-08-08 07:36 UTC] laruence@php.net
-Status: Closed +Status: Feedback -PHP Version: 7.0.3 +PHP Version: 7.0.9
 [2016-08-08 09:56 UTC] cmb@php.net
-Status: Feedback +Status: Not a bug -Assigned To: +Assigned To: cmb
 [2016-08-08 09:56 UTC] cmb@php.net 
So this is not a bug. :-)
 [2016-08-08 10:01 UTC] lars dot schultz at toolpark dot com 
Well...it used to be one. I couldn't find a matching Bug-Report. If it wasn't caught by a test, maybe one should be added? not sure how tests work in PHP though.
 [2016-08-08 10:18 UTC] cmb@php.net 
It appears to me that the commit that fixed this issue was
<http://git.php.net/?p=php-src.git;a=commit;h=7989db9>. There is
alread a PHPT[1] attached, so we do have a regression test
already.

[1] <http://qa.php.net/write-test.php>
 
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