[wp-trac] [WordPress Trac] #12212: post__in can't manage empty array properly

[WordPress Trac]

#12212: post__in can't manage empty array properly
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 Reporter:  lifeless85    |       Owner:  ryan          
     Type:  defect (bug)  |      Status:  new           
 Priority:  normal        |   Milestone:  Future Release
Component:  Query         |     Version:  2.9.1         
 Severity:  normal        |    Keywords:  post__in      
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Comment(by lifeless85):

 Ah! i also wanted to say, that in my opinion we should not initialize
 {{{$array_keys}}} to empty array because if we test it later by using
 {{{elseif ( $q['post__in'] )}}}, an empty array evals to false and an
 unset variable too.

 So we should not initialize them and get advantages in the empty array
 meaning ...

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Ticket URL: <http://core.trac.wordpress.org/ticket/12212#comment:14>
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