[Tickets #12827] Re: PHP ERROR: array_intersect_key() when purging deleted items

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Ticket URL: http://bugs.horde.org/ticket/12827
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  Ticket             | 12827
  Updated By         | Michael Slusarz <slusarz at horde.org>
  Summary            | PHP ERROR: array_intersect_key() when purging deleted
                     | items
  Queue              | IMP
  Version            | 6.1.5
  Type               | Bug
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
-Owners             |
+Owners             | Michael Slusarz
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Michael Slusarz <slusarz at horde.org> (2013-11-20 21:58) wrote:

Try this.

And TIL that assigning a reference to a non-existent array key DOESN'T  
cause a PHP error - it instead creates a reference to a null value.   
(Although it is documented, so my bad:  
http://www.php.net/manual/en/language.references.whatdo.php)