Filter hook 'pre_schedule_event'

Description

Filter to override 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 {@see 'schedule_event'} filter to check if another plugin has disallowed the event before scheduling. Return true if the event was scheduled, false or a WP_Error if not. }

Occurrences

Parameters

PHP Doc

/**
	 * Filter to override 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 {@see 'schedule_event'}
	 * filter to check if another plugin has disallowed the event before scheduling.
	 *
	 * Return true if the event was scheduled, false or a WP_Error if not.
	 *
	 * @since 5.1.0
	 * @since 5.7.0 The `$wp_error` parameter was added, and a `WP_Error` object can now be returned.
	 *
	 * @param null|bool|WP_Error $result   The value to return instead. Default null to continue adding the event.
	 * @param object             $event    {
	 *     An object containing an event's data.
	 *
	 *     @type string       $hook      Action hook to execute when the event is run.
	 *     @type int          $timestamp Unix timestamp (UTC) for when to next run the event.
	 *     @type string|false $schedule  How often the event should subsequently recur.
	 *     @type array        $args      Array containing each separate argument to pass to the hook's callback function.
	 *     @type int          $interval  Optional. The interval time in seconds for the schedule. Only present for recurring events.
	 * }
	 * @param bool               $wp_error Whether to return a WP_Error on failure.
	 */