#35651 [Opn->Bgs]: Recursive call to setter "blocks" the property
ID: 35651
Updated by: tony2001@php.net
Reported By: tomas_matousek at hotmail dot com
-Status: Open
+Status: Bogus
Bug Type: Scripting Engine problem
Operating System: WinXP
PHP Version: 5.1.1
New Comment:
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
__set() and __get() are called only if such property doesn't exist.
Previous Comments:
------------------------------------------------------------------------
[2005-12-12 21:20:26] tomas_matousek at hotmail dot com
Description:
------------
In the following example, the __setter invoked by $x->a = "g1";
statement tries to write to "a" property again by $this->a = "a";
statement in the switch. This latter access is correctly considered to
be recursive and thus treated as assignment to $this->a and not as a
recursive call. That's ok. However, after returning from the __setter
and when invoking it again by $x->b = "g2"; the $this->a = "b"; should
call the __setter because we it is not a recursive call ("b" was
accessed, not "a"). Hence $this->a = "b"; should invoke __setter in
this case. And that doesn't happen.
Reproduce code:
---------------
class C
{
function __set($f,$v)
{
echo "set('$f','$v')\n";
switch ($f)
{
case "a": $this->a = "a"; break;
case "b": $this->a = "b"; break;
}
}
}
$x = new C;
$x->a = "g1"; // this blocks "a" on $x forever
$x->b = "g2";
Expected result:
----------------
set('a','g1')
set('b','g2')
set('a','b')
Actual result:
--------------
set('a','g1')
set('b','g2')
------------------------------------------------------------------------
--
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