#37212 [Opn]: Protected variables not always accessible between sub-classes

From: Date: Wed, 26 Apr 2006 18:37:27 +0000
Subject: #37212 [Opn]: Protected variables not always accessible between sub-classes
References: 1  Groups: php.bugs 
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 ID:               37212
 User updated by:  andreasblixt at msn dot com
 Reported By:      andreasblixt at msn dot com
 Status:           Open
 Bug Type:         Class/Object related
 Operating System: Irrelevant
 PHP Version:      5.1.2
 New Comment:

While looking for a workaround I found that the result of the test on a
protected method instead of a protected property is different
(successful):

Workaround:
-----------
Add a protected method in the same class in which the protected
property is defined that returns the value of the property. Then call
the method in place of attempting to access the property.


Previous Comments:
------------------------------------------------------------------------

[2006-04-26 18:13:51] andreasblixt at msn dot com

In addition to the above description I would like to add that the
sub-classes CAN access each other's protected variables, if the
accessing is done in a shared parent class.

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

[2006-04-26 18:10:02] andreasblixt at msn dot com

Description:
------------
In class structures where the sub-classes are extended non-linearly
(i.e. multiple classes on the same tier), the sub-classes in different
lines cannot access variables defined as protected in a shared parent
class in eachother.

Reproduce code:
---------------
http://pastebin.com/683438

Expected result:
----------------
Tier3A accessing Tier3C...
OK! ('Value from Tier3C')
Tier3B accessing Tier3C...
OK! ('Value from Tier3C')


Actual result:
--------------
Tier3A accessing Tier3C...
OK! ('Value from Tier3C')
Tier3B accessing Tier3C...

Fatal error: Cannot access protected property Tier3C::$value in
protected.php5 on line 31



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