#26325 [Opn]: At least a notice when accessing private members in a derived class?

[drm at melp dot nl]

 ID:               26325
 User updated by:  drm at melp dot nl
 Reported By:      drm at melp dot nl
 Status:           Open
 Bug Type:         Feature/Change Request
 Operating System: Windows XP
 PHP Version:      5.0.0b2 (beta2)
 New Comment:

Here's a more explanatory piece of code:
http://gerard.yoursite.nl/php.net/private-members.phps


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

[2003-11-19 17:49:24] drm at melp dot nl

Description:
------------
Hi :)

I read in the new features list of Zend Engine 2 that access modifiers
like private/protected are introduced, but something really weird comes
in mind when reading carefully.

Private members are returned _empty_ wheing tried to be accessed from
derived classes. "Intended behaviour", is said. OK, i can live with
that. But even when i turned on notices with error_reporting, nothing
is noticed?

The case grows when looking at the following code sample. This could
produce very weird bugs when writing PHP code (i hope you can see that
;)), so I would like to convince you all to at least implement a Notice
when trying to access (non-defined) private (parent) members?

It would do the coders not using E_ALL no harm :) Please consider this
:)

Reproduce code:
---------------
error_reporting ( E_ALL );
class Test {
   private $member;
   function __construct ()       { $this->member = "Test constructor";
}
   function __toString ()        { return "Member contains:
{$this->member}"; }
   function getMember ()         { return $this->member;  }
   function setMember ( $m )     { $this->member = $m; }
}
class DeriveTest extends Test {
   function __construct ()       { parent::__construct (); }
   function __toString ()        { return "Member contains:
{$this->member}, though getMember() says: " . $this->getMember() ."?";
}
   function setMember ( $m )     { $this->member = $m; }
}
$o = new DeriveTest ();
echo $o, '<br>';
$o->setMember ( "a" );
echo $o, '<br>';


Expected result:
----------------
The expected result would be for me:

Notice: undefined member ``DeriveTest::$member'' in ...\test.php on
line 12
Member contains: , though getMember() says: Test constructor?
Member contains: a, though getMember() says: Test constructor?

or something of the sort

Actual result:
--------------
The actual result is:

Member contains: , though getMember() says: Test constructor?
Member contains: a, though getMember() says: Test constructor?


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Edit this bug report at http://bugs.php.net/?id=26325&edit=1