[wp-trac] [WordPress Trac] #54440: Make remove_filter param type more inclusive

[WordPress Trac]

#54440: Make remove_filter param type more inclusive
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 Reporter:  malthert      |       Owner:  johnbillion
     Type:  defect (bug)  |      Status:  reviewing
 Priority:  normal        |   Milestone:  5.9
Component:  Plugins       |     Version:  2.2
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:  docs
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Comment (by johnbillion):

 I pushed some additions to the PR. The following functions (and their
 `WP_Hook` counterpart methods) all accept a callback that doesn't have to
 be a valid callable:

 * `remove_filter()`
 * `has_filter()`
 * `remove_action()`
 * `_wp_filter_build_unique_id()`

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Ticket URL: <https://core.trac.wordpress.org/ticket/54440#comment:7>
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