WordPress at a glance
filter is not described

pingback_useragent filter-hook . WP 2.9.0

Filters the user agent sent when pinging-back a URL.


add_filter( 'pingback_useragent', 'filter_function_name_5794', 10, 5 );
function filter_function_name_5794( $concat_useragent, $useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom ){
	// filter...

	return $concat_useragent;
The user agent concatenated with ' -- WordPress/' and the WordPress version.
The useragent.
The server URL being linked to.
URL of page linked to.
URL of page linked from.


Since 2.9.0 Introduced.

Where the hook is called

wp-includes/comment.php 3059
$client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . get_bloginfo( 'version' ), $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom );

Where in WP core the hook is used WordPress

Usage not found.