trackback( string $trackback_url, string $title, string $excerpt, int $ID )
Send a Trackback.
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
function trackback( $trackback_url, $title, $excerpt, $ID ) {
global $wpdb;
if ( empty( $trackback_url ) ) {
return;
}
$options = array();
$options['timeout'] = 10;
$options['body'] = array(
'title' => $title,
'url' => get_permalink( $ID ),
'blog_name' => get_option( 'blogname' ),
'excerpt' => $excerpt,
);
$response = wp_safe_remote_post( $trackback_url, $options );
if ( is_wp_error( $response ) ) {
return;
}
$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', %s) WHERE ID = %d", $trackback_url, $ID ) );
return $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $trackback_url, $ID ) );
}
Expand full source code Collapse full source code View on Trac
Changelog Changelog
| Version | Description |
|---|---|
| 0.71 | Introduced. |