From:
Operating system: Ubuntu 11.04
PHP version: 5.4SVN-2011-08-03 (SVN)
Package: Class/Object related
Bug Type: Bug
Bug description:Unexpected fatal error when using abstract functions with traits
Description:
------------
When resolving trait abstract methods, it seems the class hierarchy is not
checked, resulting in a fatal error if an abstract method isn't implemented
directly in the class that is utilising the trait.
Test script:
---------------
<?php
trait ATrait
{
function bar()
{
$this->foo();
}
abstract function foo();
}
class Base
{
function foo() { }
}
class Child extends Base
{
use ATrait;
}
Actual result:
--------------
PHP Fatal error: Cannot make non abstract method Base::foo() abstract in
class
Child in /home/jared/Temp/trait.php on line 21
Fatal error: Cannot make non abstract method Base::foo() abstract in class
Child
in /home/jared/Temp/trait.php on line 21
--
Edit bug report at https://bugs.php.net/bug.php?id=55355&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=55355&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=55355&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=55355&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=55355&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=55355&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=55355&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=55355&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=55355&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=55355&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=55355&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=55355&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=55355&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=55355&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=55355&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=55355&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=55355&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=55355&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=55355&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=55355&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=55355&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=55355&r=mysqlcfg
