sanitize_trackback_urls
sanitize_trackback_urls ( $to_ping )
Parameters:- (string) to_ping Space or carriage return separated URLs
Returns:- (string) URLs starting with the http or https protocol, separated by a carriage return.
Defined at: - Introduced in WordPress: 3.4.0
- Deprecated in WordPress: —
Description
Sanitizes space or carriage return separated URLs that are used to send trackbacks.