From: maciej dot sz at gmail dot com
Operating system: irrelevant
PHP version: 5.4Git-2012-09-28 (snap)
Package: Scripting Engine problem
Bug Type: Bug
Bug description:Implementing interface in sub-class with a trait triggers fatal
error
Description:
------------
This happens when method of a sub-class introduce new, optional parameters
which are needed for an interface implementation. If a trait is source for
the implementation of that method then a fatal error is triggered:
Fatal error: Declaration of Base::push() must be compatible with I::push
Bug #60153 might be related as it considers opposite situation.
I've checked this with:
5.4.1
5.4.7
5.5-dev (snap 201209280930)
Test script:
---------------
<?php
error_reporting(E_ALL);
interface I
{
public function push($val, $scope = null);
}
trait T
{
public function push($val, $scope = null){}
}
class Base
{
public function push($val){}
}
class Sub extends Base
{
use T;
}
$SubReflection = new ReflectionClass('Sub');
// this shows correct push() method, compatible with 'I' interface:
echo $SubReflection->getMethod('push');
// however adding 'implements I' triggers fatal error:
class SubImplements extends Base implements I
{
use T;
}
Expected result:
----------------
No errors (interface is implemented properly)
Actual result:
--------------
Fatal error: Declaration of Base::push() must be compatible with
I::push($val, $scope = NULL)
--
Edit bug report at https://bugs.php.net/bug.php?id=63177&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=63177&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=63177&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=63177&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=63177&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=63177&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=63177&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=63177&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=63177&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=63177&r=support
Expected behavior: https://bugs.php.net/fix.php?id=63177&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=63177&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=63177&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=63177&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63177&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=63177&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=63177&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=63177&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63177&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=63177&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=63177&r=mysqlcfg
