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

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

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Parameters Parameters


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


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


(bool) Whether to return a WP_Error on failure.

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Source Source

File: wp-includes/cron.php

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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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