[wp-trac] [WordPress Trac] #16781: is_wp_error() simplification

[WordPress Trac]

#16781: is_wp_error() simplification
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 Reporter:  hakre        |       Owner:
     Type:  enhancement  |      Status:  closed
 Priority:  normal       |   Milestone:
Component:  General      |     Version:  3.1
 Severity:  normal       |  Resolution:  invalid
 Keywords:  has-patch    |
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Changes (by dd32):

 * status:  new => closed
 * resolution:   => invalid
 * milestone:  Awaiting Review =>


Comment:

 Calling `is_a()` with a non-object `$thing` is known to have unexpected
 behaviours https://bugs.php.net/bug.php?id=55475

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Ticket URL: <http://core.trac.wordpress.org/ticket/16781#comment:4>
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