Comments on: Neat PHP Tricks: How To Assign References to Globals http://www.otton.org/2008/11/09/neat-php-tricks-assign-references-globals-workaround/ Look! Bunnies! Wed, 08 Sep 2010 15:09:57 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: pestaa http://www.otton.org/2008/11/09/neat-php-tricks-assign-references-globals-workaround/comment-page-1/#comment-4913 pestaa Mon, 10 Nov 2008 16:32:50 +0000 http://www.otton.org/?p=295#comment-4913 You're welcome. :) We're in that lucky situation that PHP is really well-documented. Always refer to there to figure out strange behaviors. You’re welcome. :) We’re in that lucky situation that PHP is really well-documented. Always refer to there to figure out strange behaviors.

]]> By: David Otton http://www.otton.org/2008/11/09/neat-php-tricks-assign-references-globals-workaround/comment-page-1/#comment-4912 David Otton Mon, 10 Nov 2008 16:23:38 +0000 http://www.otton.org/?p=295#comment-4912 pestaa: I think that's a pretty clear explanation of what's going on, thanks. pestaa: I think that’s a pretty clear explanation of what’s going on, thanks.

]]> By: pestaa http://www.otton.org/2008/11/09/neat-php-tricks-assign-references-globals-workaround/comment-page-1/#comment-4911 pestaa Mon, 10 Nov 2008 16:11:52 +0000 http://www.otton.org/?p=295#comment-4911 In your first script, "global $obj;" creates a reference, that attaches $obj to $GLOBAL["obj"]; . When you perform the following action, you redefine local $obj variable to be a reference of a newly created stdClass. In this case, your global variable isn't touched at all. That is the expected way, and PHP just does it well. (Of course, in the second example, you directly rewrite the global var, explicitly create a reference to a stdClass.) Hope this helps. However, if I have misunderstood something, correct me please. In your first script, “global $obj;” creates a reference, that attaches $obj to $GLOBAL["obj"]; .
When you perform the following action, you redefine local $obj variable to be a reference of a newly created stdClass. In this case, your global variable isn’t touched at all. That is the expected way, and PHP just does it well.

(Of course, in the second example, you directly rewrite the global var, explicitly create a reference to a stdClass.)

Hope this helps. However, if I have misunderstood something, correct me please.

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