สอบถามเกี่ยวกับการ Export CSV file คับ คือมีปัญหาเกี่ยวกับการแบ่งคอลัม

mysql_select_db($database_db_conn, $db_conn);
mysql_query('SET CHARACTER SET tis620');
$query_exportQue = sprintf
("SELECT tb_question.questionText,tb_question.questionNo,tb_question.questionID
FROM tb_question,tb_answer
WHERE tb_question.questionID = tb_answer.questionID
GROUP BY tb_answer.questionID");
				
$exportQue = mysql_query($query_exportQue, $db_conn) or die(mysql_error());
$totalRows_exportQue = mysql_num_rows($exportQue);
$row_exportQue = mysql_fetch_array($exportQue);

$filName = "answer.csv";
$objWrite = fopen("answer.csv", "w");
		
	do{
		fwrite($objWrite, "\"$row_exportQue[questionText]\",");
	
	                mysql_select_db($database_db_conn, $db_conn);
			mysql_query('SET CHARACTER SET tis620');
			
                       $query_exportPart = 
					"select tb_choice.choiceText
					from tb_answer,tb_choice
					where tb_answer.choiceID = tb_choice.choiceID
					and  tb_answer.questionID = '$row_exportQue[questionID]' ";
					$exportPart = mysql_query($query_exportPart, $db_conn) or die(mysql_error());
					$totalRows_exportPart = mysql_num_rows($exportPart);
					
					
			
			do{			
				fwrite($objWrite, "\"$row_exportPart[choiceText]\"\n");
				}while($row_exportPart = mysql_fetch_array($exportPart));
				
			//	fwrite($objWrite, "\n");
				
	}while($row_exportQue = mysql_fetch_array($exportQue));