function Delete_v2($db,$table_name, $where_clause=''){   


  $whereSQL = '';


  if(!empty($where_clause)) {


    if(substr(strtoupper(trim($where_clause)), 0, 5) != 'WHERE') {


      $whereSQL = " WHERE ".$where_clause;


    } else {


      $whereSQL = " ".trim($where_clause);


    }


  }


  $sql = "DELETE FROM `".$table_name."` ".$whereSQL;


  $dt['sql']=$sql.";";


  if(mysqli_query($db,$sql)) {


    $dt['result']="Success";


  } else {


    $dt['result']="Error";    


  }  


  return json_encode($dt);


}