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Bug #69259 One reference passing fail with call_user_func_array() causes other fails
Submitted: 2015-03-19 05:36 UTC Modified: 2015-03-19 08:33 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: ryosuke_i_628 at yahoo dot co dot jp Assigned:
Status: Closed Package: *General Issues
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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From: ryosuke_i_628 at yahoo dot co dot jp
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 [2015-03-19 05:36 UTC] ryosuke_i_628 at yahoo dot co dot jp 
Description:
------------
One reference passing fail with call_user_func_array() causes other fails.
HHVM is already fixed on this issue, however, PHP 7 still has this problem.
http://3v4l.org/jd9Nd

Test script:
---------------
<?php
function inc(&$a, &$b) {
    ++$a; ++$b;
}
$a = 1;
$b = 1;
$params = array($a, &$b);
call_user_func_array('inc', $params);
var_dump($params);

Expected result:
----------------
Warning: Parameter 1 to inc() expected to be a reference, value given in ... on line ...
array(2) {
  [0]=>
  int(1)
  [1]=>
  &int(2)
}

Actual result:
--------------
Warning: Parameter 1 to inc() expected to be a reference, value given in ... on line ...
array(2) {
  [0]=>
  int(1)
  [1]=>
  &int(1)
}

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 [2015-03-19 08:02 UTC] demon@php.net
-Status: Open +Status: Verified -Assigned To: +Assigned To: demon
 [2015-03-19 08:19 UTC] laruence@php.net
-Assigned To: demon +Assigned To:
 [2015-03-19 08:19 UTC] laruence@php.net 
from what I can tell, it is by design, if the parameters checking is fail, the destination function won't be called.

thus this behavior is expected.


thanks
 [2015-03-19 08:19 UTC] laruence@php.net
-Status: Verified +Status: Feedback
 [2015-03-19 08:33 UTC] ryosuke_i_628 at yahoo dot co dot jp
-Status: Feedback +Status: Closed
 [2015-03-19 08:33 UTC] ryosuke_i_628 at yahoo dot co dot jp 
To be sure.

<?php
function inc(&$a, &$b) {
    ++$a; ++$b;
    echo 'Function called' . PHP_EOL;
}
$a = 1;
$b = 1;
$params = array($a, &$b);
call_user_func_array('inc', $params);
var_dump($params);
?>

I verified this script doesn't print "Function called", thanks.
 
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