Bug #51487 [Com]: set_error_handler() misbehave under certain circumstancies

Edit report at http://bugs.php.net/bug.php?id=51487&edit=1

 ID:               51487
 Comment by:       fabien dot potencier at symfony-project dot org
 Reported by:      fabien dot potencier at symfony-project dot org
 Summary:          set_error_handler() misbehave under certain
                   circumstancies
 Status:           Feedback
 Type:             Bug
 Package:          Scripting Engine problem
 Operating System: All
 PHP Version:      5.3.2

 New Comment:

I have just tested with php5.3-201004061030, and the problem is not
fixed.

The output is indeed better, as the line is not 0 anymore:

Call to a member function call() on a non-object in ... on line 9

instead of:

Call to a member function call() on a non-object in ... on line 0


Previous Comments:
------------------------------------------------------------------------
[2010-04-06 14:31:45] [email protected]

bug #51463 might be related, stas also worked on a similar bug where I
don't find the commit or bug id right now. Could you pleasetest the
latest snapshot, maybe this was fixed. Thanks.

------------------------------------------------------------------------
[2010-04-06 13:56:59] fabien dot potencier at symfony-project dot org

Description:
------------
When throwing an exception from a custom error handler, PHP sometimes
dies with a non-obvious error as the actual problem is hidden.

To reproduce, create a simple set_error_handler() and throw an exception
(ErrorException here) whenever an error occur (with error_reporting set
to -1 for instance).

If you try to output a not-defined variable, you will see the Exception.
But, if you call a method on a not-defined variable, the exception is
not thrown, and an error message is displayed instead. Debugging is not
trivial as the real problem is masked.


Test script:
---------------
set_error_handler(function ($level, $message, $file, $line, $context)
{
  throw new \ErrorException($message);
});

// will throw an Exception (Undefined variable: foo)
// echo $foo;

// will not throw the exception, PHP will try to call bar() instead
$foo->bar();


Expected result:
----------------
PHP Fatal error:  Uncaught exception 'ErrorException' with message
'Undefined variable: foo' in ..:..

Actual result:
--------------
PHP Fatal error:  Call to a member function bar() on a non-object in ...
on line 0


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



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Edit this bug report at http://bugs.php.net/bug.php?id=51487&edit=1