QueryException in Connection.php line 729:
oci_bind_by_name(): ORA-01036: illegal variable name/number (SQL: SELECT funcao(':login') FROM DUAL)

public function login(){
        $login = Request::input('login');
        $var = DB::connection('oracle1')->select("SELECT funcao(':login') FROM DUAL", array( "login" => $login));

        return 'Resultado: '.$var;
    }

DB::connection('oracle1')->select("SELECT funcao('?') FROM DUAL", array( "login" => $login));

oci_bind_by_name(): ORA-01036: illegal variable name/number (SQL: SELECT funcao('CARLOS.BRITO') FROM DUAL)