Bug #44930 [Com]: protected __set()|__get() not working

From: Date: Wed, 19 Jan 2011 16:52:49 +0000
Subject: Bug #44930 [Com]: protected __set()|__get() not working
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-158012@lists.php.net to get a copy of this message
Edit report at http://bugs.php.net/bug.php?id=44930&edit=1

 ID:                 44930
 Comment by:         theodor at tonum dot no
 Reported by:        daniel at txtconnect dot com
 Summary:            protected __set()|__get() not working
 Status:             Bogus
 Type:               Bug
 Package:            Class/Object related
 Operating System:   Linux (Ubuntu 7.10)
 PHP Version:        5.2.6
 Block user comment: N
 Private report:     N

 New Comment:

I'd give kudos to daniel for this one.

Yes, __get() and __set() is supposed to be set to public - but it would
be a good 
thing, in terms of data-encapsulation, that we could have protected
__get() and 
__set().

Dunno if this should be brought to feature request - but as the
documentation 
states:
"All overloading methods must be defined as public. "

One should expect another result than the above by defining __get/__set
as protected 
(e.g. a php error).


Previous Comments:
------------------------------------------------------------------------
[2008-05-07 15:08:18] jani@php.net

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php



------------------------------------------------------------------------
[2008-05-07 03:40:52] crrodriguez at suse dot de

http://php.net/manual/en/language.oop5.overloading.php

"All overloading methods must be defined as public. "


but anyway.. your code is behaving as expected.

------------------------------------------------------------------------
[2008-05-07 00:02:14] daniel at txtconnect dot com

Description:
------------
When using protected __set() it still gets called from outside the class
(parent or children) 

Reproduce code:
---------------
abstract class Example {
    private $data = array();
    protected function __set($key, $value) {
        $this->data[$key] = $value;
    }
    protected function __get($key) {
        return $this->data[$key];
    }
}

class MyExample extends Example {
    public function __construct($name, $value) {
        $this->$name = $value; // sets parent::$data[$name] = $key
    }
}
$c = new MyExample('name', 'foo');
echo $c->name; // echoes foo (Should not do so because Example::__get()
is protected)
$c->name = 'bar'; // Should not be able to assign 'bar' Example::__set()
protected, but does!
echo $c->name; // echoes bar (Should not do so because Example::__get()
are protected)
var_dump($c);

Expected result:
----------------
I expected an error to be thrown saying that i am trying to access
protected data and am not allowed to do so.

When setting a variable, from outside the class, i should be unable to
do so error thrown! 

Actual result:
--------------
foo
bar
object(MyExample)#1 (1) 
{ 
    ["data:private"]=> array(1) 
    { 
        ["name"]=> string(3) "bar" 
    }
}


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



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Edit this bug report at http://bugs.php.net/bug.php?id=44930&edit=1


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