Unschedules a previously scheduled event.
Description
The $timestamp and $hook parameters are required so that the event can be identified.
Parameters
$timestampintrequired- Unix timestamp (UTC) of the event.
$hookstringrequired- Action hook of the event.
$argsarrayoptional- Array containing each separate argument to pass to the hook’s callback function.
Although not passed to a callback, these arguments are used to uniquely identify the event, so they should be the same as those used when originally scheduling the event.
Default:
array() $wp_errorbooloptional- Whether to return a WP_Error on failure.
Default:
false
Source
function wp_unschedule_event( $timestamp, $hook, $args = array(), $wp_error = false ) { // Make sure timestamp is a positive integer. if ( ! is_numeric( $timestamp ) || $timestamp <= 0 ) { if ( $wp_error ) { return new WP_Error( 'invalid_timestamp', __( 'Event timestamp must be a valid Unix timestamp.' ) ); } return false; } /** * Filter to override unscheduling of events. * * Returning a non-null value will short-circuit the normal unscheduling * process, causing the function to return the filtered value instead. * * For plugins replacing wp-cron, return true if the event was successfully * unscheduled, false or a WP_Error if not. * * @since 5.1.0 * @since 5.7.0 The `$wp_error` parameter was added, and a `WP_Error` object can now be returned. * * @param null|bool|WP_Error $pre Value to return instead. Default null to continue unscheduling the event. * @param int $timestamp Unix timestamp (UTC) for when to run the event. * @param string $hook Action hook, the execution of which will be unscheduled. * @param array $args Arguments to pass to the hook's callback function. * @param bool $wp_error Whether to return a WP_Error on failure. */ $pre = apply_filters( 'pre_unschedule_event', null, $timestamp, $hook, $args, $wp_error ); if ( null !== $pre ) { if ( $wp_error && false === $pre ) { return new WP_Error( 'pre_unschedule_event_false', __( 'A plugin prevented the event from being unscheduled.' ) ); } if ( ! $wp_error && is_wp_error( $pre ) ) { return false; } return $pre; } $crons = _get_cron_array(); $key = md5( serialize( $args ) ); unset( $crons[ $timestamp ][ $hook ][ $key ] ); if ( empty( $crons[ $timestamp ][ $hook ] ) ) { unset( $crons[ $timestamp ][ $hook ] ); } if ( empty( $crons[ $timestamp ] ) ) { unset( $crons[ $timestamp ] ); } return _set_cron_array( $crons, $wp_error ); } Hooks
- apply_filters( ‘pre_unschedule_event’,
null|bool|WP_Error $pre ,int $timestamp ,string $hook ,array $args ,bool $wp_error ) Filter to override unscheduling of events.
Changelog
| Version | Description |
|---|---|
| 5.7.0 | The $wp_error parameter was added. |
| 5.1.0 | Return value modified to boolean indicating success or failure, 'pre_unschedule_event' filter added to short-circuit the function. |
| 2.1.0 | Introduced. |
You can also use
wp_clear_scheduled_hook(), which callswp_unschedule_event(). It will similarly clear all future events and save you from callingwp_next_scheduled()yourself.Example