wp-includes/comment.php:3690Sends a pingback.
$serverstringoptional''$pathstringoptional''function weblog_ping( $server = '', $path = '' ) { require_once ABSPATH . WPINC . '/class-IXR.php'; require_once ABSPATH . WPINC . '/class-wp-http-ixr-client.php'; // Using a timeout of 3 seconds should be enough to cover slow servers. $client = new WP_HTTP_IXR_Client( $server, ( ( ! strlen( trim( $path ) ) || ( '/' === $path ) ) ? false : $path ) ); $client->timeout = 3; $client->useragent .= ' -- WordPress/' . get_bloginfo( 'version' ); // When set to true, this outputs debug messages by itself. $client->debug = false; $home = trailingslashit( home_url() ); if ( ! $client->query( 'weblogUpdates.extendedPing', get_option( 'blogname' ), $home, get_bloginfo( 'rss2_url' ) ) ) { // Then try a normal ping. $client->query( 'weblogUpdates.ping', get_option( 'blogname' ), $home ); }}Introduced in 1.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/comment.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.