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Date: Tue, 4 Oct 2005 14:17:23 +0100
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Thread-Topic: [PHP-DEV] $ref =& $this;
Thread-Index: AcXIKFwcyhMT4V5pRgyJ0rJaLGGkgwAvJFWQ
To: "Robert Cummings" <robert@interjinn.com>
Cc: "PHP Developers Mailing List" <internals@lists.php.net>
Subject: RE: [PHP-DEV] $ref =& $this;
From: M.Ford@leedsmet.ac.uk ("Ford, Mike")

On 03 October 2005 15:41, Robert Cummings wrote:

> Amazing how fast the assumption has become that passing
> object values in
> PHP5 is identical to passing the object by reference. It is not the
> same, there are subtle differences. Either way I'm not weighing in on
> the $ref =3D &$this issue, only that $obj =3D $someObj is NOT the same as
> $obj =3D &$someObj.=20

Yes, very true.  I've mentioned before that I think PHP 5's object thingumm=
ies should be referred to as "handles" (and I'm sure I actually saw this us=
age in early versions of the PHP 5 or Zend Engine 2 proposals).  Then, it's=
 much clearer that:

   $obj2 =3D $obj1

gives you a copy of the object handle, but:

   $obj2 =3D &$obj1

gives you a reference to the handle.

Cheers!

Mike

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