[wp-trac] [WordPress Trac] #36994: Deprecate wp_get_sites()

[WordPress Trac]

#36994: Deprecate wp_get_sites()
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 Reporter:  jeremyfelt          |      Owner:
     Type:  defect (bug)        |     Status:  new
 Priority:  normal              |  Milestone:  4.6
Component:  Networks and Sites  |    Version:
 Severity:  normal              |   Keywords:  needs-patch
  Focuses:  multisite           |
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 Now that `get_sites()` has been introduced (See #35791) as part of
 `WP_Site_Query`, we can deprecate `wp_get_sites()`, which is not used
 within core at all.

 This will entail:

 * Add deprecation notice.
 * Move function to `ms-deprecated.php`
 * Either adjust all tests to use `get_sites()` or add
 `@ExpectedDeprecated` docs where appropriate. It may be good to leave all
 or some of the `wp_get_sites()` tests to help maintain backward
 compatibility.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36994>
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