WordPress at a glance
filter is not described

url_to_postid filter-hook . WP 2.2.0

Filters the URL to derive the post ID from.

Usage

add_filter( 'url_to_postid', 'filter_function_name_6633' );
function filter_function_name_6633( $url ){
	// filter...

	return $url;
}
$url(string)
The URL to derive the post ID from.

Where the hook is called

url_to_postid()
wp-includes/rewrite.php 472
$url = apply_filters( 'url_to_postid', $url );

Where the hook is used (in WP core)

Does not used.