Fout bij MySQL class

<?
	public function fetch_assoc($res,$returnname='')
	{
	 	$return = FALSE;
		try {
		 	$return = @mysql_fetch_assoc($res);
			if(!$return)
				throw new Exception('Error during fetching (as assoc) the results ('.mysql_error().')');
			return $return;
		} catch (Exception $error) {
			echo $error->getMessage();
		}
	}

<?
	public function fetch_assoc($res,$returnname='')
	{
	 	$return = FALSE;
		try {
		 	$return = @mysql_fetch_assoc($res);
			if(!$return)
				throw new Exception('Error during fetching (as assoc) the results ('.mysql_error().')');
			return $return;
		} catch (Exception $error) {
			echo $error->getMessage();
		}
	}

<?
  public function fetch_assoc($res,$returnname='')
  {
     $return = false;
     $return = @mysql_fetch_assoc($res);
     if(!$return)
       echo 'Error during fetching (as assoc) the results ('.mysql_error().')';
      return $return;
  }

<?
  public function fetch_assoc($res,$returnname='')
  {
     $return = false;
     $return = @mysql_fetch_assoc($res);
     if(!$return)
       echo 'Error during fetching (as assoc) the results ('.mysql_error().')';
      return $return;
  }