Bug #48622 [Asn->Dup]: Invalid error reporting with __toString() method
Edit report at https://bugs.php.net/bug.php?id=48622&edit=1
ID: 48622
Updated by: nikic@php.net
Reported by: woody dot gilk at kohanaphp dot com
Summary: Invalid error reporting with __toString() method
-Status: Assigned
+Status: Duplicate
Type: Bug
Package: Scripting Engine problem
Operating System: Mac OSX 10.5
PHP Version: 5.2.10
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
Marking as a duplicate of bug #53648, which has more discussion on this issue.
Previous Comments:
------------------------------------------------------------------------
[2009-06-22 19:18:26] woody dot gilk at kohanaphp dot com
To add a little more information here, I should be able to do this:
try
{
echo $object.$foo;
}
catch (ErrorException $e)
{
// Trap the E_NOTICE from $foo being undefined
echo 'error occurred';
}
However, because an E_FATAL is incorrectly triggered, it is impossible
to do so.
------------------------------------------------------------------------
[2009-06-20 22:05:18] woody dot gilk at gmail dot com
Here is a copy of the test script: http://gist.github.com/133305
------------------------------------------------------------------------
[2009-06-20 22:03:30] woody dot gilk at kohanaphp dot com
Description:
------------
When using a custom error handler, it is possible to make PHP trigger an
E_FATAL by concatenating an object with a __toString() method together
with a variable that is not set.
Tested in 5.2.9 and 5.2.10.
Reproduce code:
---------------
<?php
class test {
public static function error_handler($code, $error, $file = NULL, $line = NULL)
{
// This error is not suppressed by current error reporting settings
throw new ErrorException($error, $code, 0, $file, $line);
}
public static function run()
{
$object = new self;
echo $object.$foo;
}
public function __toString()
{
return __CLASS__;
}
}
error_reporting(E_ALL);
set_error_handler(array('test', 'error_handler'));
test::run();
Expected result:
----------------
PHP Fatal error: Uncaught exception 'ErrorException' with message
'Undefined variable: foo' in php_bug.php:15
Stack trace:
#0 php_bug.php(15): test::error_handler()
#1 php_bug.php(29): test::run()
#2 {main}
thrown in php_bug.php on line 15
Actual result:
--------------
PHP Fatal error: Method test::__toString() must not throw an exception
in
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=48622&edit=1
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