Filter to preflight or hijack unscheduling of events.

Returning a non-null value will short-circuit the normal unscheduling process, causing the function to return the filtered value instead.

For plugins replacing wp-cron, return true if the event was successfully unscheduled, false or a WP_Error if not.

$pre null|bool|WP_Error

Value to return instead. Default null to continue unscheduling the event.

$timestamp int

Timestamp for when to run the event.

$hook string

Action hook, the execution of which will be unscheduled.

$args array

Arguments to pass to the hook's callback function.

$wp_error bool

Whether to return a WP_Error on failure.

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

$pre = apply_filters( 'pre_unschedule_event', null, $timestamp, $hook, $args, $wp_error );