the_guid filter-hook . WP 4.2.0

Filters the escaped Global Unique Identifier (guid) of the post.

Usage

add_filter( 'the_guid', 'filter_function_name_1599', 10, 2 );
function filter_function_name_1599( $guid, $id ){
	// filter...

	return $guid;
}

$guid(string)

Escaped Global Unique Identifier (guid) of the post.

$id(int)

The post ID.

Where the hook is called

echo apply_filters( 'the_guid', $guid, $id );

Where the hook is used (in WP core)

add_filter( 'the_guid', 'esc_url' );