Summery Summery

Filter to preflight or hijack clearing all events attached to the hook.

Syntax Syntax

apply_filters( 'pre_unschedule_hook', null|int|false $pre, string $hook )

Description 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 the number of events successfully unscheduled (zero if no events were registered with the hook) or false if unscheduling one or more events fails.

Parameters Parameters


(null|int|false) Value to return instead. Default null to continue unscheduling the hook.


(string) Action hook, the execution of which will be unscheduled.

Source Source

File: wp-includes/cron.php


Changelog Changelog

Version Description
5.1.0 Introduced.


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