Bug #48622 [Opn->Asn]: Invalid error reporting with __toString() method

Edit report at https://bugs.php.net/bug.php?id=48622&edit=1 ID: 48622 Updated by: dmitry@php.net Reported by: woody dot gilk at kohanaphp dot com Summary: Invalid error reporting with __toString() method -Status: Open +Status: Assigned Type: Bug Package: Scripting Engine problem Operating System: Mac OSX 10.5 PHP Version: 5.2.10 -Assigned To: +Assigned To: dmitry Block user comment: N Private report: N 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 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=48622&edit=1