trackback

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Summery Summery

Send a Trackback.

Syntax Syntax

trackback( string $trackback_url, string $title, string $excerpt, int $ID )

Description Description

Updates database when sending trackback to prevent duplicates.

Parameters Parameters

$trackback_url

(string) (Required) URL to send trackbacks.

$title

(string) (Required) Title of post.

$excerpt

(string) (Required) Excerpt of post.

$ID

(int) (Required) Post ID.

Return Return

(int|false|void) Database query from update.

Source Source

File: wp-includes/comment.php

		if ( '' !== $service ) {
			weblog_ping( $service );
		}
	}

	return $post_id;
}

/**
 * Pings back the links found in a post.
 *
 * @since 0.71
 * @since 4.7.0 `$post_id` can be a WP_Post object.
 *
 * @param string      $content Post content to check for links. If empty will retrieve from post.
 * @param int|WP_Post $post_id Post Object or ID.
 */
function pingback( $content, $post_id ) {
	include_once ABSPATH . WPINC . '/class-IXR.php';
	include_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php';

	// Original code by Mort (http://mort.mine.nu:8080).
	$post_links = array();

	$post = get_post( $post_id );

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Changelog Changelog

Changelog
Version Description
0.71 Introduced.

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