Edit report at http://bugs.php.net/bug.php?id=52318&edit=1
ID: 52318
Comment by: bastard dot internets at gmail dot com
Reported by: brendel at krumedia dot de
Summary: Weak references for PHP
Status: Open
Type: Feature/Change Request
Package: Scripting Engine problem
PHP Version: Irrelevant
Block user comment: N
New Comment:
brendel at krumedia dot de - If I understand this issue correctly, this
is already solvable I think by by copying the object by reference:
"$obj2 =& $obj1;". If assigning $obj2 from a function, declare the
function to return by reference: "$obj2 =& Factory::Spawn('some
data');". You can then alter same object properties through $obj1 or
$obj2, or null both by just nulling one. But, if you just
"unset($obj1);" rather than nulling it like "$obj1 = null;", $obj2 will
still be intact.
Does this describe the behavior you're looking for?
Previous Comments:
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[2010-07-14 10:15:36] brendel at krumedia dot de
(Edit: It's the Dictionary class of Actionscript 3 instead of the Vector
class.)
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[2010-07-12 17:22:30] brendel at krumedia dot de
Description:
------------
PHP should introduce weak references like other languages have for
example the Vector class of Actionscript 3, WeakReference class of Java
or boost's shared_pointer.
This would help PHP CLI programs and other complex PHP scripts. For
example, the Doctrine Project implements the Row Data Gateway Design
Pattern and therefore use an internal repository (cache of record
objects) to guarantee that only one object per table row exists. The
cache has no chance to free objects that are no longer in use. So, a
free() method is provided that will clean up all relations and remove
parts from the repository. But this is no good solution to the problem:
freeing will lead to bugs because other code might rely on some of the
freed objects but they are no longer intact.
Thanks for reading
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Edit this bug report at http://bugs.php.net/bug.php?id=52318&edit=1
