[wp-trac] [WordPress Trac] #37414: Use `get_network()` instead of global `$current_site`

[WordPress Trac]

#37414: Use `get_network()` instead of global `$current_site`
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 Reporter:  flixos90            |      Owner:
     Type:  enhancement         |     Status:  new
 Priority:  normal              |  Milestone:  Future Release
Component:  Networks and Sites  |    Version:  trunk
 Severity:  normal              |   Keywords:  needs-patch
  Focuses:  multisite           |
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 `get_network()` falls back to the current network if no parameter is
 provided. That means we can use it anywhere we currently work with globals
 or with `get_current_site()`. I think the latter function should be
 deprecated afterwards.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37414>
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