Filter to override unscheduling of events.
Description
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.
Parameters
$prenull|bool|WP_Error- Value to return instead. Default null to continue unscheduling the event.
$timestampint- Timestamp for when to run the event.
$hookstring- Action hook, the execution of which will be unscheduled.
$argsarray- Arguments to pass to the hook’s callback function.
$wp_errorbool- Whether to return a WP_Error on failure.
Source
$pre = apply_filters( 'pre_unschedule_event', null, $timestamp, $hook, $args, $wp_error );
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