get_trackback_url()

Retrieves the current post’s trackback URL.

Description

There is a check to see if permalink’s have been enabled and if so, will retrieve the pretty path. If permalinks weren’t enabled, the ID of the current post is used and appended to the correct page to go to.

Return

(string) The trackback URL after being filtered.

Source

File: wp-includes/comment-template.php 

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

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()

Retrieve the ID of the current item in the WordPress Loop.
wp-includes/comment-template.php: trackback_url

Filters the returned trackback URL.

Used By

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.

Changelog

Version Description
1.5.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/get_trackback_url