What is WordPress Hook: pre_schedule_event
The pre_schedule_event hook in WordPress is used to perform actions or filters before a scheduled event is added to the cron job. This hook allows developers to modify or validate the scheduled event before it is added to the cron job.
Understanding the Hook: pre_schedule_event
The pre_schedule_event hook is located within the wp-includes/cron.php file in WordPress. It is called right before the event is added to the cron job, giving developers the opportunity to perform any necessary actions or modifications.
Hook Parameters (if applicable): pre_schedule_event
The pre_schedule_event hook accepts two parameters: $event (string) and $timestamp (int). The $event parameter is the name of the event being scheduled, and the $timestamp parameter is the Unix timestamp for when the event will occur.
Hook Doesn’t Work: pre_schedule_event
If the pre_schedule_event hook doesn’t work as expected, it could be due to incorrect usage or conflicts with other plugins or themes. To troubleshoot, developers should check for any errors in their code and ensure that the hook is being used in the correct context.
Best Practices & Usage Notes (if applicable): pre_schedule_event
When using the pre_schedule_event hook, it’s important to keep in mind that any modifications made to the scheduled event should be carefully tested to avoid disrupting the cron job system. Additionally, developers should be mindful of any performance implications when using this hook for extensive modifications.
pre_schedule_event Usage Example: pre_schedule_event
“`php
function modify_scheduled_event($event, $timestamp) {
// Perform actions or modifications before the event is added to the cron job
return $event;
}
add_filter(‘pre_schedule_event’, ‘modify_scheduled_event’, 10, 2);
“`
