From:
Operating system: Ubuntu 9.10/RHEL 4
PHP version: 5.2.13
Package: Class/Object related
Bug Type: Bug
Bug description:Abstract Method Not Overridden will Halt PHP.
Description:
------------
if you have an abstract class that gets overridden, if a method that is
overridden has a default where the abstract doesn't, PHP just halts without
any error, warning, or fatal. For small projects this is manageable, but
when you have a large project, hunting down these things take a long time,
such as a multi-thousand lined library loaded with abstract classes.
These are the folowing versions of PHP that I've tested:
$ php --version
PHP 5.2.10-2ubuntu6.4 with Suhosin-Patch 0.9.7 (cli) (built: Jan 6 2010
22:56:44)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
and
<This is a RHEL box. (Red Hat Enterprise Linux ES release 4 (Nahant Update
8))>
$ php --version
PHP 5.2.13 (cli) (built: Apr 6 2010 18:40:35)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
Test script:
---------------
runme.php
<?php
include("file1.php"); // Fails here because a method isn't overridden.
// Just halts, no errors with error_reporting on and error output set to
E_ALL.
// The included file never actually executes any code unless the $bar in
// the abstract class is changed to $bar=null, which fixes the problem,
but
// finding the problem to begin with is the problem.
?>
file1.php
<?php
include_once("file2.php");
class example extends absEx {
function foo($bar=null) {
// Do something
}
}
?>
file2.php
<?php
abstract class absEx {
abstract function foo($bar);
}
?>
Expected result:
----------------
Error: Abstract method not overridden (Line: ##### OR method name)
Actual result:
--------------
# PHP halts suddenly with no error output.
--
Edit bug report at http://bugs.php.net/bug.php?id=51900&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51900&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51900&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51900&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51900&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51900&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51900&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51900&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51900&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51900&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51900&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51900&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51900&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51900&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51900&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51900&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51900&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51900&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51900&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51900&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51900&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51900&r=mysqlcfg
