Edit report at https://bugs.php.net/bug.php?id=62537&edit=1
ID: 62537
Comment by: dagguh at gmail dot com
Reported by: jeremeamia at gmail dot com
Summary: Composed class has fatal error with duplicate, equal
array properties
Status: Open
Type: Bug
Package: Class/Object related
Operating System: Ubuntu
PHP Version: 5.4.4
Block user comment: N
Private report: N
New Comment:
If it is logically the same thing, it should be only in one of these traits,
don't
you think?
SRP and DRY, fellas
Previous Comments:
------------------------------------------------------------------------
[2012-07-20 09:07:13] ahar...@php.net
I'd call this a bug, rather than a documentation issue; if Foo::$var ===
Bar::$var, I can't really see why it should fatal.
Reclassifying, and we'll see what the engine folk think.
------------------------------------------------------------------------
[2012-07-12 01:36:55] jeremeamia at gmail dot com
Another test script, which might be even more relevant:
trait Foo {public $var = [];}
class Bar {use Foo; public $var = [];}
This also causes a fatal error for me, which should only be a strict error
based
on the documentation.
------------------------------------------------------------------------
[2012-07-11 19:45:00] jeremeamia at gmail dot com
Description:
------------
---
>From manual page: http://www.php.net/language.oop5.traits
---
The manual says, "If a trait defines a property then a class can not define a
property with the same name, otherwise an error is issued. It is an E_STRICT if
the class definition is compatible (same visibility and initial value) or fatal
error otherwise."
This does not appear to be true when the same-named properties have array
values.
See the test script for a quick example. It seems that it behaves as the
documentation describes only with scalar values.
This is either missing/erroneous documentation (i.e. the behavior is intended),
or
it is a bug (i.e. equal array values should not cause a fatal error).
Test script:
---------------
trait Foo {public $var = [];}
trait Bar {public $var = [];}
class Baz {use Foo, Bar;}
Expected result:
----------------
To behave as the documentation describes, i.e. no fatal errors occuring.
Actual result:
--------------
PHP Fatal error: Foo and Bar define the same property ($var) in the
composition
of Baz. However, the definition differs and is considered incompatible.
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=62537&edit=1
