February 12, 2011 
Definition:
function trackback($trackback_url, $title, $excerpt, $ID) {}
Send a Trackback.
Updates database when sending trackback to prevent duplicates.
Parameters
- string $trackback_url: URL to send trackbacks.
- string $title: Title of post.
- string $excerpt: Excerpt of post.
- int $ID: Post ID.
Return values
returns:Database query from update.
Source code
function trackback($trackback_url, $title, $excerpt, $ID) {
global $wpdb;
if ( empty($trackback_url) )
return;
$options = array();
$options['timeout'] = 4;
$options['body'] = array(
'title' => $title,
'url' => get_permalink($ID),
'blog_name' => get_option('blogname'),
'excerpt' => $excerpt
);
$response = wp_remote_post($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) );
}
3069
A HitchHackers guide through WordPress 
No comments yet... Be the first to leave a reply!