default: Error('InvalID permission.'); } $manage->alter_database('UPDATE Users SET Permission=\'' . $permission . '\' WHERE Username='******'username'] . ''); break; case 'change_username': if (strlen($_POST['username']) < 4) { Error('Username must be more than 3 characters.'); } $manage->chUsername(@$_POST['username']); break; case 'change_password': if (strlen($_POST['password']) < 8) { Error('Password must be more than 7 characters.'); } $manage->chPassword($_POST['username']); break; case 'change_mail': if (!filter_var(@$_POST['mail'], FILTER_VALIDATE_EMAIL)) { Error("E-Mail is not valid."); } $manage->alter_database('UPDATE Users Mail=\'' . @$_POST['username'] . '\' WHERE Username=\'' . $manage->user->username() . '\''); break; case 'logout': $manage->logout(); break; default: Error('Action doesn\'t exist.'); } ?> <h1> Action </h1>