[wp-trac] [WordPress Trac] #16731: Unchecked array_merge() returns NULL in wp_update_user();

[WordPress Trac]

#16731: Unchecked array_merge() returns NULL in wp_update_user();
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 Reporter:  milan.chotai  |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Users         |    Version:  3.1
 Severity:  normal        |   Keywords:  needs-patch needs-testing
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 I am running PHP version 5.3.3-1ubuntu9.3 and encountered a bug in a
 simple plug-in I wrote that worked up to Wordpress v3.0.5 but not in 3.1.
 It uses wp_update_user(), which is causing the issue. I traced the bug to
 line 1563 of wp-includes/user.php:

 $userdata = array_merge($user, $userdata);

 If $user is NULL, then array_merge returns NULL, making $userdata useless
 to other functions that follow like wp_insert_user().

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Ticket URL: <http://core.trac.wordpress.org/ticket/16731>
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