if(isset($_POST["scan"])) 
    {
        $name_film = htmlspecialchars ($_POST["name_film"]);
        $year = htmlspecialchars($_POST["year"]);
        $genre = htmlspecialchars($_POST["genre"]);
        if ($name_film!=NULL)
        {
            function printResult ($result_set)
            {
                echo "Найденно фильмов:".$result_set->num_rows."
";
                while (($row = ($result_set->fetch_assoc())) != false)
                {
                    echo "
Название:".  $row["film"]."
Год:".$row["year"]."
Жанр:". $row["genre"]."
";
                }
            }
            $result=$mysqli->query("SELECT * FROM `Films` WHERE `film` LIKE '%$name_film%'"); 
            printResult ($result);
        }
    }