Fw: [PHP] ERROR IN THIS CODE

include('include/conexion.php');

       include('include/conf.php');

                                       $sql = "SELECT * FROM oposicions WHERE id = '$id'";----------------> I think that the problem is here.

                                           $result = mysql_query($sql, $link);

                                           while( ($row=mysql_fetch_object($result)) ) {
                                           $nome = $row->nome;

In my database exist the table oposicions with a field called id.My php version es 4.3.38 and of mysql is 3.23.58 thank you in advance