ID: 34044
Updated by: [EMAIL PROTECTED]
Reported By: arendjr at gmail dot com
-Status: Open
+Status: Wont fix
Bug Type: Feature/Change Request
-Operating System: Linux
+Operating System: *
-PHP Version: 5.0.4
+PHP Version: *
New Comment:
Long ago we decided against 'friend' declarations.
Previous Comments:
------------------------------------------------------------------------
[2006-10-11 12:22:24] goliath dot mailinglist at gmx dot de
I'm developing an OOP CMS, too. This feature is really elementary for
complex systems where you want to limit access to the internals.
Currently I developed a system to access protected methods from outside
(using one base-class, a list to control the access and some secure
handshake when accessing the method), but thats detouring. Would be
nice to see some friend-system (like C++, or package -systemlike Java)
in PHP6.
If someone is interested in the code I mentioned above, I can post it.
------------------------------------------------------------------------
[2006-09-03 18:34:38] linus dot martensson at elplan-gm dot se
I'm developing an OOP CMS, and the lack of friend objects prevents me
from disallowing layouts access to unsafe internal variables. It's
actually a rather severe problem when you try writing an advanced
system.
------------------------------------------------------------------------
[2006-06-16 21:34:45] tsteiner at nerdclub dot net
In PHP 5.1, it is possible to simulate the function of friend classes
with __get and __set (I think PHP 5.0 triggers an error when trying to
access private properties even with __get or __set):
class HasFriends
{
private $__friends = array('MyFriend', 'OtherFriend');
public function __get($key)
{
$trace = debug_backtrace();
if(isset($trace[1]['class']) && in_array($trace[1]['class'],
$this->__friends)) {
return $this->$key;
}
// normal __get() code here
trigger_error('Cannot access private property ' . __CLASS__ .
'::$' . $key, E_USER_ERROR);
}
public function __set($key, $value)
{
$trace = debug_backtrace();
if(isset($trace[1]['class']) && in_array($trace[1]['class'],
$this->__friends)) {
return $this->$key = $value;
}
// normal __set() code here
trigger_error('Cannot access private property ' . __CLASS__ .
'::$' . $key, E_USER_ERROR);
}
}
------------------------------------------------------------------------
[2006-01-11 00:49:08] php at lost dot co dot nz
This would also be really useful for me writing unit tests so that I
can run 'white box' testing on internal private methods another class
(like I used to do back in the 'good' old days of PHP4... ;-)
Something like this:
class Util
{
friend class UtilTest;
private static function foo() {...}
}
class UtilTest
{
if( Util::foo() != $expected )
...
}
------------------------------------------------------------------------
[2005-08-09 02:11:57] arendjr at gmail dot com
Description:
------------
It would be really nice if PHP5 would support "friend classes", like
C++ does. This way, classes can give access to their private members to
other classes.
Reproduce code:
---------------
class Foo
{
friend class Bar; // using C++ syntax
private static $a = 5;
}
class Bar
{
public static function printA()
{
echo Foo::$a;
}
}
Bar::printA();
Expected result:
----------------
the above example would then print: "5"
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=34044&edit=1
