login

query($sql); header("Location: index.php"); } else{ $first=1; $invalid=1; } } }else{ $first=1; $invalid=2; } } ?> login

enter username and password !

';} if($invalid==1 and $invalid_pass!=1){ echo'

invalid username or password !

'; }elseif($invalid==2){ echo'

this user is not regesterd !

'; } } ?>