http_headers_useragent filter-hook . WP 2.7.0

Filters the user agent value sent with an HTTP request.

Usage

add_filter( 'http_headers_useragent', 'filter_function_name_3914', 10, 2 );
function filter_function_name_3914( $user_agent, $url ){
	// filter...

	return $user_agent;
}

$user_agent(string): WordPress user agent string.
$url(string): The request URL.

Notes

Since 5.1.0 The $url parameter was added.

Where the hook is called

WP_Http::request()

http_request_timeout

http_request_redirection_count

http_request_version

http_headers_useragent

http_request_reject_unsafe_urls

wp_xmlrpc_server::pingback_ping()

xmlrpc_call

pingback_ping_source_uri

http_headers_useragent

pre_remote_source

pingback_post

wp-includes/class-http.php 191

'user-agent'          => apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ), $url ),

wp-includes/class-wp-xmlrpc-server.php 6757

$user_agent = apply_filters( 'http_headers_useragent', 'WordPress/' . get_bloginfo( 'version' ) . '; ' . get_bloginfo( 'url' ), $url );

Where the hook is used (in WP core)

Does not used.