¿ø¹® $result = mysql_query("select * from $member_table where user_id='$user_id' and password=password('$password')") or error(mysql_error());
¼öÁ¤ $result = mysql_query("select * from $member_table where lcase(user_id)='$user_id' and password=password('$password')") or error(mysql_error());