get_trackback_url() WordPress Function

function get_trackback_url() {
	if ( get_option( 'permalink_structure' ) ) {
		$tb_url = trailingslashit( get_permalink() ) . user_trailingslashit( 'trackback', 'single_trackback' );
	} else {
		$tb_url = get_option( 'siteurl' ) . '/wp-trackback.php?p=' . get_the_ID();
	}

	/**
	 * Filters the returned trackback URL.
	 *
	 * @since 2.2.0
	 *
	 * @param string $tb_url The trackback URL.
	 */
	return apply_filters( 'trackback_url', $tb_url );
}
Uses	Description
wp-includes/formatting.php:trailingslashit()	Appends a trailing slash.
wp-includes/link-template.php:get_permalink()	Retrieves the full permalink for the current post or post ID.
wp-includes/link-template.php:user_trailingslashit()	Retrieves a trailing-slashed string if the site is set for adding trailing slashes.
wp-includes/plugin.php:apply_filters()	Calls the callback functions that have been added to a filter hook.
wp-includes/option.php:get_option()	Retrieves an option value based on an option name.
wp-includes/post-template.php:get_the_ID()	Retrieves the ID of the current item in the WordPress Loop.
wp-includes/comment-template.php:trackback_url	Filters the returned trackback URL.
Used By	Description
wp-includes/comment-template.php:trackback_url()	Displays the current post’s trackback URL.
wp-includes/comment-template.php:trackback_rdf()	Generates and displays the RDF for the trackback information of current post.