Modify an event before it is scheduled.

Parameters

$eventobject|false

An object containing an event’s data, or boolean false to prevent the event from being scheduled.

• hook string
  Action hook to execute when the event is run.
• timestamp int
  Unix timestamp (UTC) for when to next run the event.
• schedule string|false
  How often the event should subsequently recur.
• args array
  Array containing each separate argument to pass to the hook’s callback function.
• interval int
  Optional. The interval time in seconds for the schedule. Only present for recurring events.

More Information

• The hook is applied when a new event is added to the cron schedule. The hook passes through one parameter: the $event being scheduled.
• In WordPress 3.21, the following recurring events are scheduled by the core: wp_version_check, wp_update_plugins, wp_update_themes, wp_schedule_delete, and (for the main site of multisite installs only) wp_update_network_counts.
• In WordPress 3.21, the following single events are scheduled on demand by the core: publish_future_post, do_pings, importer_scheduled_cleanup.

Source

$event = apply_filters( 'schedule_event', $event );

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Changelog