#28377 [Com]: debug_backtrace is intermittently passing args

[helmut at topconcepts dot de]

 ID:               28377
 Comment by:       helmut at topconcepts dot de
 Reported By:      sean at caedmon dot net
 Status:           Verified
 Bug Type:         Scripting Engine problem
 Operating System: *
 PHP Version:      4CVS-2004-07-02
 New Comment:

I have the same error with 5.0.3 and 5.0.4-dev
so it's not only a PHP 4 problem


Previous Comments:
------------------------------------------------------------------------

[2004-05-12 20:43:48] sean at caedmon dot net

Description:
------------
debug_backtrace() behaves strangely when passed as a function
argument.

This does not happen if debug_backtrace is dereferenced (see code), nor
if debug_backtrace() is the first parameter to my custom_callback
function (not denoted in code)

I'll be happy to provide additional details.

This SEEMS like #27397 but is not a ZE2 problem (I'm using 4.3) and is
NOT fixed in CVS.

Thanks,
S


Reproduce code:
---------------
<?php
function doit($a, $b)
{
  $trace = debug_backtrace();
  custom_callback('dereferenced', $trace);
  custom_callback('direct', debug_backtrace());
}
  
function custom_callback($traceName, $btInfo)
{
  echo $traceName ." -- args: ";
  echo isset($btInfo[0]['args']) ? 'exists' : 'does not exist';
  echo "\n";
}
  
doit('a','b');

?>


Expected result:
----------------
dereferenced -- args: exists
direct -- args: exists


Actual result:
--------------
dereferenced -- args: exists
direct -- args: does not exist



------------------------------------------------------------------------


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Edit this bug report at http://bugs.php.net/?id=28377&edit=1