login tanpa database

Berikut code form login tanpa database di PHP : ?php session_start (); $username = 'admin'; $password = '123'; if ( isset ( $_POST [ 'submit' ])) { if ( $_POST [ 'username' ] == $username $_POST [ 'password' ] == $password ) { $_SESSION [ "username" ] = $username ; echo "Anda Berhasil Login $password"; } else { // Tampilkan Pesan Error . indokasino login