Filter hook 'pre_unschedule_event'

in WP Core File wp-includes/cron.php at line 493

View Source

pre_unschedule_event

Filter Hook
Description
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.

Hook Information

File Location wp-includes/cron.php View on GitHub
Hook Type Filter
Line Number 493

Hook Parameters

Type Name Description
null|bool|WP_Error $pre Value to return instead. Default null to continue unscheduling the event.
int $timestamp Unix timestamp (UTC) for when to run the event.
string $hook Action hook, the execution of which will be unscheduled.
array $args Arguments to pass to the hook's callback function.
bool $wp_error Whether to return a WP_Error on failure.

Usage Examples

Basic Usage
<?php
// Hook into pre_unschedule_event
add_filter('pre_unschedule_event', 'my_custom_filter', 10, 5);

function my_custom_filter($pre, $timestamp, $hook, $args, $wp_error) {
    // Your custom filtering logic here
    return $pre;
}

Source Code Context

wp-includes/cron.php:493 - How this hook is used in WordPress core
<?php
 488  	 * @param int                $timestamp Unix timestamp (UTC) for when to run the event.
 489  	 * @param string             $hook      Action hook, the execution of which will be unscheduled.
 490  	 * @param array              $args      Arguments to pass to the hook's callback function.
 491  	 * @param bool               $wp_error  Whether to return a WP_Error on failure.
 492  	 */
 493  	$pre = apply_filters( 'pre_unschedule_event', null, $timestamp, $hook, $args, $wp_error );
 494  
 495  	if ( null !== $pre ) {
 496  		if ( $wp_error && false === $pre ) {
 497  			return new WP_Error(
 498  				'pre_unschedule_event_false',

PHP Documentation

<?php
/**
	 * 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.
	 */
Quick Info
  • Hook Type: Filter
  • Parameters: 5
  • File: wp-includes/cron.php
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