[wp-trac] [WordPress Trac] #35491: Add a function to check whether a hook is scheduled

[WordPress Trac]

#35491: Add a function to check whether a hook is scheduled
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 Reporter:  dlh                       |       Owner:
     Type:  enhancement               |      Status:  new
 Priority:  normal                    |   Milestone:  4.5
Component:  Cron API                  |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by swissspidy):

 It doesn't hurt if `wp_is_scheduled_hook` returns the timestamp instead of
 `true`, right?

 In that case, the function would be quite similar to `wp_next_scheduled()`
 in that it's probably just easier to extend it. For example, by just
 allowing to pass `$args = false` to `wp_next_scheduled()` in order to get
 this information.

 [attachment:wp_next_scheduled.diff] implements this in a backwards-
 compatible manner.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35491#comment:3>
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