[wp-trac] [WordPress Trac] #18458: calling is_user_logged_in() when logged-out throws PHP notice

[WordPress Trac]

#18458: calling is_user_logged_in() when logged-out throws PHP notice
------------------------------+-----------------------------
 Reporter:  wonderboymusic    |      Owner:
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Warnings/Notices  |    Version:
 Severity:  normal            |   Keywords:  has-patch
------------------------------+-----------------------------
 calling wp_get_current_user() when no user is logged in does not produce a
 User object, yet is_user_logged_in() tries to read the the id property of
 $user on every call to this function, whether an object exists or not.

 This produces the following notice in the logs when error_reporting is set
 to -1

 {{{ PHP Notice:  Trying to get property of non-object in
 /Users/scott/Sites/emusic/trunk/wordpress/wp-includes/pluggable.php on
 line 758 }}}

 The function is triggered by all calls to $WP_Query->get_posts() and will
 produce an obscene number of notices in error logs on high traffic sites.
 As an example, every XML-RPC made on eMusic.com produces this Notice in
 our logs.

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Ticket URL: <http://core.trac.wordpress.org/ticket/18458>
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