Normalizes data for a site prior to inserting or updating in the database.

Cleans up an array, comma- or space-separated list of IDs.

Converts a comma- or space-separated list of scalar values to an array.

Cleans up an array, comma- or space-separated list of slugs.

Prepares site data for insertion or update in the database.

Redirects to another page.

Removes all filters modifying the rel attribute of targeted links.

Reschedules a recurring event.

Performs a safe (local) redirect, using wp_redirect().

Schedules a recurring event.