mysqli_query($conn, "SET NAMES utf8");
mysqli_query($conn, "SET CHARACTER SET utf8");
mysqli_query($conn, "set collation_connection = 'utf8_general_ci'");
mysqli_query($conn, "set character_set_client='utf8'");
mysqli_query($conn, "set character_set_results='utf8'");
mysqli_query($conn, "set character_set_system='utf8'");