pre_schedule_event хук-фильтр . WP 5.1.0

Filter to preflight or hijack scheduling an event.

Returning a non-null value will short-circuit adding the event to the cron array, causing the function to return the filtered value instead.

Both single events and recurring events are passed through this filter; single events have $event->schedule as false, whereas recurring events have this set to a recurrence from wp_get_schedules(). Recurring events also have the integer recurrence interval set as $event->interval.

For plugins replacing wp-cron, it is recommended you check for an identical event within ten minutes and apply the 'schedule_event' filter to check if another plugin has disallowed the event before scheduling.

Return true if the event was scheduled, false if not.

Использование

add_filter( 'pre_schedule_event', 'filter_function_name_9275', 10, 2 );
function filter_function_name_9275( $pre, $event ){
	// filter...

	return $pre;
}

$pre(null/true/false)

Value to return instead.
По умолчанию: null to continue adding the event

$event(stdClass)

An object containing an event's data.

• $hook (строка)
  Action hook to execute when the event is run.

• $timestamp (число)
  Unix timestamp (UTC) for when to next run the event.

• $schedule (строка/false)
  How often the event should subsequently recur.

• $args (массив)
  Array containing each separate argument to pass to the hook's callback function.

• $interval (число)
  The interval time in seconds for the schedule. Only present for recurring events.

Где вызывается хук

$pre = apply_filters( 'pre_schedule_event', null, $event );

$pre = apply_filters( 'pre_schedule_event', null, $event );

Где используется хук (в ядре WP)