Edit report at https://bugs.php.net/bug.php?id=64987&edit=1

 ID:                 64987
 Updated by:         dmi...@php.net
 Reported by:        tyr...@php.net
 Summary:            unexpected result for call_user_func() in the
                     debug_backtrace()
 Status:             Assigned
 Type:               Bug
 Package:            Scripting Engine problem
 Operating System:   irrelevant
 PHP Version:        5.3.26
 Assigned To:        laruence
 Block user comment: N
 Private report:     N

 New Comment:

In my opinion, the current implementation is the right one.
It follows the simple rule: when we call some function from an internal one we 
don't track file name and line number (just because we don't have PHP source 
for it).

I don't think we need to fix this behaviour.

Thanks. Dmitry.


Previous Comments:
------------------------------------------------------------------------
[2013-06-09 09:02:35] larue...@php.net

A patch is added, introduced a new fn_flag ZEND_ACC_CALL_PROXY, applies to 
call_user_func, call_user_func_array, forward_static_call, reflectionMethod-
>invoke etc

and this only flag should only affects debug_backtrace handling ...

thanks

------------------------------------------------------------------------
[2013-06-09 09:00:08] larue...@php.net

The following patch has been added/updated:

Patch Name: add_call_proxy_flag.patch
Revision:   1370768408
URL:        
https://bugs.php.net/patch-display.php?bug=64987&patch=add_call_proxy_flag.patch&revision=1370768408

------------------------------------------------------------------------
[2013-06-07 17:15:45] larue...@php.net

hmm, I may find a solution, use tricky ZEND_CALL_VIA_HANDLER fn_flags, for 
call_user_func, may like:

$ git diff
diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 9c91404..03f836e 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -2983,7 +2983,7 @@ const zend_function_entry basic_functions[] = { /* {{{ */

        PHP_FE(error_log,
                arginfo_error_log)
        PHP_FE(error_get_last,
        arginfo_error_get_last)
-       PHP_FE(call_user_func,
        arginfo_call_user_func)
+       ZEND_FENTRY(call_user_func, ZEND_FN(call_user_func), 
arginfo_call_user_func, ZEND_ACC_CALL_VIA_HANDLER|ZEND_ACC_
PUBLIC)
        PHP_FE(call_user_func_array,
arginfo_call_user_func_array)
        PHP_DEP_FE(call_user_method,
arginfo_call_user_method)
        PHP_DEP_FE(call_user_method_array,
arginfo_call_user_method_array)

------------------------------------------------------------------------
[2013-06-07 17:08:16] larue...@php.net

I understood your point, I just don't know how to fix other related functions 
once.

call_user_func, call_method, reflectionmethod->invoke, 
reflectionFunction->invoke 
etc.

------------------------------------------------------------------------
[2013-06-07 14:05:34] tyr...@php.net

from the userland developer POV (=debug_backtrace() target audience) the foo 
call 
happens in the call_user_func line.
generating bogus entry because we unintentionally leak implementation details 
to 
the userland is a bad thing imo.
I agree that the fixing this via allowing all zend functions to fetch the info 
from the previous frame would be a bad thing, but it wasn't my intention to 
suggest that.

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


The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at

    https://bugs.php.net/bug.php?id=64987


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