WordPress at a glance
filter is not described

wp_signature_url filter-hook . WP 5.2.0

Filter the URL where the signature for a file is located.

Usage

add_filter( 'wp_signature_url', 'filter_function_name_9340', 10, 2 );
function filter_function_name_9340( $signature_url, $url ){
	// filter...

	return $signature_url;
}
$signature_url(false/string)
The URL where signatures can be found for a file, or false if none are known.
$url(string)
The URL being verified.

Where the hook is called

download_url()
wp_signature_url
wp-admin/includes/file.php 1074
$signature_url = apply_filters( 'wp_signature_url', $signature_url, $url );

Where the hook is used (in WP core)

Использование не найдено.