|wp-includes/formatting.php: sanitize_trackback_urls()|| |
Sanitize space or carriage return separated URLs that are used to send trackbacks.
|wp-includes/plugin.php: apply_filters()|| |
Calls the callback functions that have been added to a filter hook.
|wp-includes/post.php: get_to_ping|| |
Filters the list of URLs yet to ping for the given post.
|wp-includes/post.php: get_post()|| |
Retrieves post data given a post ID or post object.