get film rating from kinopoisk and imdb

// get film rating from  kinopoisk and imdb - example [get_rating film="6750" site="kp"]
add_shortcode('get_rating', 'get_rating_func');
function get_rating_func( $atts ) {
 $film = $atts['film'];
 $site = $atts['site'];
 $rating = [];
 $xml   = simplexml_load_file( 'https://rating.kinopoisk.ru/' . $film . '.xml' );
 $names = ['kp_rating', 'imdb_rating'];
 foreach ( $names as $name ) {
 $new_name            = str_replace( '_rating', '', $name );
 $rating[ $new_name ] = dom_import_simplexml( $xml->$name )->nodeValue;
 }
 return $rating[$site];
}