ID: 41929
User updated by: robin at soal dot org
Reported By: robin at soal dot org
Status: Open
Bug Type: Scripting Engine problem
Operating System: Windows
PHP Version: 5CVS-2007-07-08 (snap)
New Comment:
Hi Judas,
Thanks for the comment. I think we may have the same understanding of
visibility in this case: D extends C, so $priv (which is defined in C)
should only be visible on instances of D if the current context is C.
If $priv is visible when using the object operator on $this, I think it
is justified that it would be visible when using foreach on $this from
the same context.
In case my use of $this was confusing the issue, here's the same
problem presented without $this (same expected and actual output as
above):
<?php
class C {
private $priv = "A private variable";
static function doLoop(D $myD) {
echo "Proof that the private is visible: " . $myD->priv . "\n";
foreach ($myD as $k=>$v) {
echo "The private is visible so should be accessed in the
loop:\n";
echo "-> $k: $v";
}
}
}
class D extends C {}
$myD = new D;
C::doLoop($myD);
?>
Previous Comments:
------------------------------------------------------------------------
[2007-07-09 02:58:07] judas dot iscariote at gmail dot com
How do you understand visibility ?
of course $priv is visible, but **in the context of class C** as you
defined it as "private" !!! (hint, hint)
$this in your code is(as expected) an instance of class D not of class
C ;-)
if you make $priv "protected" it will work as expected (hint,hint)
------------------------------------------------------------------------
[2007-07-08 20:03:41] robin at soal dot org
Description:
------------
The documentation states that "all visible properties will be used for
the iteration" when foreach'ing over an object.
Below is a case where this is not true.
Reproduce code:
---------------
<?php
class C {
private $priv = "A private variable";
function doLoop() {
echo "Proof that the private is visible: " . $this->priv . "\n";
foreach ($this as $k=>$v) {
echo "The private is visible so should be accessed in the
loop:\n";
echo "-> $k: $v";
}
}
}
class D extends C {}
$myD = new D;
$myD->doLoop();
?>
Expected result:
----------------
Proof that the private is visible: A private variable
The private is visible so should be accessed in the loop:
-> priv: A private variable
Actual result:
--------------
Proof that the private is visible: A private variable
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=41929&edit=1
