trackback_url │ filter-hook │ WP 2.2.0

Filters the returned trackback URL.

Usage

add_filter( 'trackback_url', 'wp_kama_trackback_url_filter' );

/**
 * Function for `trackback_url` filter-hook.
 * 
 * @param string $trackback_url The trackback URL.
 *
 * @return string
 */
function wp_kama_trackback_url_filter( $trackback_url ){

	// filter...
	return $trackback_url;
}

$trackback_url(string)

The trackback URL.

Changelog

Where the hook is called

return apply_filters( 'trackback_url', $trackback_url );

Where the hook is used in WordPress