apply_filters( 'pre_schedule_event', null|bool|WP_Error $pre, stdClass $event, bool $wp_error )

Filter to preflight or hijack scheduling an event.


Description

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 or a WP_Error if not.


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Parameters

$pre null|bool|WP_Error
Value to return instead. Default null to continue adding the event.
$event stdClass
An object containing an event's data.
  • 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
    The interval time in seconds for the schedule. Only present for recurring events.
$wp_error bool
Whether to return a WP_Error on failure.

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Source

File: wp-includes/cron.php. View all references

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


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Changelog

Changelog
Version Description
5.7.0 The $wp_error parameter was added, and a WP_Error object can now be returned.
5.1.0 Introduced.

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