ดึงข้อมูลจากดาต้าเบสแล้วหน้าเว็บกลายเป็น ?????? ... รบกวนช่วยดูให้หน่อยค่ะ

	function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $persistency = true)
	{

		$this->persistency = $persistency;
		$this->user = $sqluser;
		$this->password = $sqlpassword;
		$this->server = $sqlserver;
		$this->dbname = $database;

		if($this->persistency)
		{
			$this->db_connect_id = @mysql_pconnect($this->server, $this->user, $this->password);
		}
		else
		{
			$this->db_connect_id = @mysql_connect($this->server, $this->user, $this->password);
			
		}

		if($this->db_connect_id)
		{
			if($database != "")
			{
				$this->dbname = $database;
				$dbselect = @mysql_select_db($this->dbname);
				
				if(!$dbselect)
				{
					@mysql_close($this->db_connect_id);
					$this->db_connect_id = $dbselect;
				}
			}
			return $this->db_connect_id;
			
		}
		else
		{
			return false;
		}
	}	



	function sql_query($query = "", $transaction = FALSE)
	{

		unset($this->query_result);
		if($query != "")
		{
			$this->num_queries++;
			$db = new sql_db($dbhost, $dbuser, $dbpasswd, $dbname, false);

			$this->query_result = @mysql_query($query, $this->db_connect_id);

		}
		if($this->query_result)
		{
			unset($this->row[$this->query_result]);
			unset($this->rowset[$this->query_result]);
			return $this->query_result;
		}
		else
		{
			return ( $transaction ) ? true : false;
		}
	}