pre_unschedule_hook

apply_filters('pre_unschedule_hook') is found 1 times:

• /wp-includes/cron.php line 673

  	 * @param null|int|false|WP_Error $pre      Value to return instead. Default null to continue unscheduling the hook.
  	 * @param string                  $hook     Action hook, the execution of which will be unscheduled.
  	 * @param bool                    $wp_error Whether to return a WP_Error on failure.
  	 */
  	$pre = apply_filters( 'pre_unschedule_hook', null, $hook, $wp_error );
  
  	if ( null !== $pre ) {
  		if ( $wp_error && false === $pre ) {
  			return new WP_Error(
  				'pre_unschedule_hook_false',
  				__( 'A plugin prevented the hook from being cleared.' )
  

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