[wp-trac] [WordPress Trac] #33118: Don't assume the $post is an array in sanitize_post().

[WordPress Trac]

#33118: Don't assume the $post is an array in sanitize_post().
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 Reporter:  morganestes   |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  2.5
 Severity:  normal        |   Keywords:
  Focuses:                |
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 `sanitize_post()` expects `$post` to be an object (`OBJECT`|WP_Post) or an
 array (`ARRAY_A`|`ARRAY_N`), and returns the same type, but only checks
 for `is_object()`, then assumes it's an array and iterates over it as one
 without further checking.

 It may be a bit overkill, but explicitly checking for `is_array()` seems
 like the right thing to do to avoid potential errors thrown by trying to
 use `array_keys()` over a non-array.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33118>
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