Edit report at https://bugs.php.net/bug.php?id=61943&edit=1

 ID:                 61943
 Updated by:         g...@php.net
 Reported by:        franssen dot roland at gmail dot com
 Summary:            Trait same property conflict in class extending
 Status:             Open
 Type:               Feature/Change Request
 Package:            Scripting Engine problem
 Operating System:   Ubuntu
 PHP Version:        5.4.2
-Assigned To:        
+Assigned To:        gron
 Block user comment: N
 Private report:     N

 New Comment:

Hi:

>From my point of view, it is not the same property.
My understanding is that you are moving here very much in the area of the 
typical diamond problem of 
multiple inheritance.

Theoretically, it is not clear whether the two properties should be handled as 
the same or not.

Why would you want to apply the trait a second time?

Best regards
Stefan


Previous Comments:
------------------------------------------------------------------------
[2012-05-04 20:07:42] franssen dot roland at gmail dot com

Description:
------------
Hi,

(version is actually 5.4RC9...)

The same property conflict happens when you have 2 traits (B uses A) where A 
defines the property, class Foo uses A and class Bar uses B _and_ extends Foo.

I would love to see the strict standard to be removed in this situation; how 
can a property have a conflict with itself?

Test script:
---------------
<?php
trait A {
    public $prop;
}
trait B {
    use A;
}
class Foo {
    use A;
}
class Bar extends Foo {
    use B;
}

Expected result:
----------------
<void>

Actual result:
--------------
Strict Standards: Foo and B define the same property ($prop) in the composition 
of Bar. This might be incompatible, to improve maintainability consider using 
accessor methods in traits instead.


------------------------------------------------------------------------



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