[wp-trac] [WordPress Trac] #39706: Add $unique param to add_{$meta_type}_meta actions

[WordPress Trac]

#39706: Add $unique param to add_{$meta_type}_meta actions
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 Reporter:  barryceelen         |       Owner:
     Type:  enhancement         |      Status:  new
 Priority:  normal              |   Milestone:  Awaiting Review
Component:  Options, Meta APIs  |     Version:
 Severity:  normal              |  Resolution:
 Keywords:                      |     Focuses:
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Comment (by barryceelen):

 In a similar fashion, the `delete_{$meta_type}_meta` could have the
 `$delete_all` param added.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39706#comment:1>
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