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List:       php-doc-bugs
Subject:    [DOC-BUGS] Doc #36971 [Com]: unset() no longer works on $this in PHP5
From:       "james at esilogix dot com" <php-bugs () lists ! php ! net>
Date:       2011-09-20 15:48:37
Message-ID: E1R62Yn-0007Ci-0b () sgrv2 ! php ! net
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Edit report at https://bugs.php.net/bug.php?id=36971&edit=1

 ID:                 36971
 Comment by:         james at esilogix dot com
 Reported by:        k at phpkoala dot com
 Summary:            unset() no longer works on $this in PHP5
 Status:             Closed
 Type:               Documentation Problem
 Package:            Documentation problem
 Operating System:   Linux
 PHP Version:        5.1.2
 Block user comment: N
 Private report:     N

 New Comment:

I have an object Criteria.  It has a method apply().  I would like to pass an object \
to apply() by reference, and if it does not satisfy the criteria, I would like \
Criteria->apply() to be able to destroy the object.

I've tried unset, I've tried object->destroy() with "unset($this)", doesn't work.  I \
can set it to null, but then I have a null object in my collection, and I don't want \
that.


Previous Comments:
------------------------------------------------------------------------
[2007-08-20 12:11:42] vrana@php.net

This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.

"It is not possible to unset $this inside an object method since PHP 5."

------------------------------------------------------------------------
[2007-07-18 13:53:56] scott at utnow dot com

This is really quite simple to understand folks...  

The guy has a class that is sitting there doing it's thing.
He has a function (say it's 'DestroyMe') that should do simply that.

The best case I can imagine...

The class is 'object' and it interfaces with a row in a table in a 
database.

If you're going to delete the object's row from the table, it probably 
makes sense to destroy the class handling it.

function destroy() { delete row; destruct class; }

Thus it would be helpful to be able to do what he's asking.

Now whether it fits within the realm of responsible coding or not I'm 
not the judge...  lol

------------------------------------------------------------------------
[2007-04-07 01:10:43] edwardzyang at thewritingpot dot com

It's tough to understand what your problem is without more code. If you are doing:

for ($i = 0; $i < 1000000; $i++) {
  $obj = new Foo();
  // do stuff with $obj
  unset($obj);
}

That should be sufficient. Could you be more specific?

Usually, if the PHP interpreter is running out of memory, you've got some bad code \
that needs refactoring.

------------------------------------------------------------------------
[2007-04-06 20:41:05] joel at propbot dot com

The problem comes into mind when your creating an object and going 
through a loop. The script just grows and grows until your out of 
memory.

We are creating an object doing what we need to do with it and trying 
to destroy it. Anybody have a solution?
I really don't want to have to go through every variable inside the 
object and do an unset().

------------------------------------------------------------------------
[2006-07-06 15:52:14] leszek@php.net

It's absurd (well, maybe not absurd, but not needed) as long as PHP has destructor \
methods.

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


The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at

    https://bugs.php.net/bug.php?id=36971


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