There are two mysql errors in my code

[leonidassavvides]

There are two mysql errors in my code (how to debug?) when I go to get quote at http://www.poliscarhire.com/ errors at
http://www.poliscarhire.com/customer...ing-review.php

first error line 725
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php:7) in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 725

725  session_start();
    $_SESSION['datep']=$_POST['datep'];
    $_SESSION['dated']=$_POST['dated'];
    $_SESSION['Locationp']=$_POST['Locationp'];
    $_SESSION['Locationd']=$_POST['Locationd'];
    $_SESSION['days']=$_POST['days'];
    $_SESSION['off']=$_POST['off'];
    $_SESSION['mostdaysrate']=$_POST['mostdaysrate'];		
    $_SESSION['finalprice']=$_POST['finalprice'];
    $_SESSION['cat']=$_POST['cat'];	
	$cat = $_SESSION['cat'];

second error line 811
Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 811

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 812

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 813

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 814

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 815

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 816

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 817

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 818

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 819

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 820

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 821

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 822

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 823

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 824

Warning: mysql_result() [function.mysql-result]: Unable to jump to row 0 on MySQL result index 3 in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 825

811 $model = mysql_result($result,0,"model");
$type = mysql_result($result,0,"type");
$transm = mysql_result($result,0,"transm");
$cc = mysql_result($result,0,"cc");
$fuel = mysql_result($result,0,"fuel");
$doors = mysql_result($result,0,"doors");
$people = mysql_result($result,0,"people");
$suitcases = mysql_result($result,0,"suitcases");
$description = mysql_result($result,0,"description");
$availability = mysql_result($result,0,"availability");
$img_small = mysql_result($result,0,"img_small");
$img_big = mysql_result($result,0,"img_big");
$special_offer = mysql_result($result,0,"special_offer");
$discount = mysql_result($result,0,"discount");
$notes = mysql_result($result,0,"notes");
				?>

[motormichael12]

Could you post line 7 from the first error?

Also, could you post the query and the $result variable for the second error, as well as any variables involved in the query?

[leonidassavvides]

For a query that results in only one entry(row), how reference differ fields ? problem second fixed-no definition of 'cat' var. well please tell me for first error ?

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php:7) in /home/content/p/o/l/polisch123/html/customeradmin/booking-review.php on line 725

may have two or more session_start(); ?

Also a new problem from the quote you get [on the left] of http://www.poliscarhire.com/
to the mysql repeat region, repeat buttons 2-6 do not work[js] the other 1, 7-16 buttons work properly, why this error ? is not a repeat ?

----------------------------------------------
line 7: I do not think this is the problem ?

<link rel="shortcut icon" href="favicon.ico" />
<!-- InstanceBeginEditable name="doctitle" -->
<title>Booking Review prior Sent</title>
line 7:<!-- InstanceEndEditable -->
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<!-- InstanceBeginEditable name="head" -->
<style type="text/css">
<!--
.style1 {font-weight: bold}
-->
</style>
<!-- InstanceEndEditable -->

            <?php     $_SESSION['cat']=$_POST['cat'];	
	$cat = $_SESSION['cat'];
?>....
........
         <?php 
// --------------------------------------------------------------------------------
include("../dbinfo.php");
$linkid = mysql_connect($hostname,$username,$password);
@mysql_select_db($database) or die( "Unable to select database");   // @
// Base query 
$query ='';
$query = "SELECT * FROM $CarsTable WHERE cat='$cat'";  
$result = @mysql_query($query,$linkid);
				$model = mysql_result($result,0,"model");
				$type = mysql_result($result,0,"type");
				$transm = mysql_result($result,0,"transm");
				$cc = mysql_result($result,0,"cc");
				$fuel = mysql_result($result,0,"fuel");
				$doors = mysql_result($result,0,"doors");
				$people = mysql_result($result,0,"people");
				$suitcases = mysql_result($result,0,"suitcases");
			$description = mysql_result($result,0,"description");
				$availability = mysql_result($result,0,"availability");
				$img_small = mysql_result($result,0,"img_small");
				$img_big = mysql_result($result,0,"img_big");
			$special_offer = mysql_result($result,0,"special_offer");
				$discount = mysql_result($result,0,"discount");
				$notes = mysql_result($result,0,"notes");
				?>

[leonidassavvides]

form1's submit button work but form2's not work,why[total 16 buttons] ?

<td align="center" valign="middle"><form action="../customeradmin/booking-review.php" method="post" enctype="application/x-www-form-urlencoded" name="form1" target="_self">
      <input type="hidden" name="datep" value="10:00 Friday August 22nd, 2008">            
      <input type="hidden" name="dated" value="10:00 Sunday August 31st, 2008">
            <input type="hidden" name="Locationp" value="Polis Office">
            <input type="hidden" name="Locationd" value="Polis Office">
            <input type="hidden" name="days" value="9">
            <input type="hidden" name="mostdaysrate" value="28">
            <input type="hidden" name="off" value="50.4">
            <input type="hidden" name="cat" value="B1">
            <input type="hidden" name="finalprice" value="231.84">
            <input type="hidden" name="car" value="Group B1-Hyundai Atoz or similar">
<a href="javascript:form1.submit()"><img src="../images/but_bookit.gif" width="80" height="22" border="0"></a>
    </form></td>
  </tr>
</table>
</fieldset>		
		</td></tr>
		<tr><td><hr size="3" /></td></tr>
<link href="/css-styles.css" rel="stylesheet" type="text/css">
<style type="text/css">
<!--
.style2 {color: #000000}
.style4 {color: #006699}
.style5 {color: #006600}
-->
</style>
				

		<tr><td><fieldset><legend>Subcompact</legend><table width="580" border="0" cellpadding="5" cellspacing="0" class="menutext" summary="quote result table cell">
  <tr>
    <td width="132" rowspan="2">&nbsp;</td>
    <td width="298">&nbsp;</td>
    <td width="120">&nbsp;</td>
  </tr>
  <tr>
    <td rowspan="3" align="center" valign="middle"><table width="104%"  border="0" cellpadding="1" cellspacing="0" class="menutext" summary="characteristics table of car for rent">
      <tr>
        <td width="32%" align="left" valign="middle"><span class="style4"> model </span></td>
        <td width="68%" align="left" valign="middle"><span class="style2">
          Opel Corsa or Toyota Yaris        </span></td>
      </tr>
      <tr>
        <td align="left" valign="middle"><span class="style4">people/door</span></td>
        <td align="left" valign="middle"><span class="style2">
          5          &nbsp;/&nbsp;
          3</span></td>
      </tr>
      <tr>
        <td align="left" valign="middle"><span class="style4"> trans </span></td>
        <td align="left" valign="middle"><span class="style2">
          manual        </span></td>
      </tr>
      <tr>
        <td align="left" valign="middle"><span class="style4"> size/fuel</span></td>
        <td align="left" valign="middle"><span class="style2">
          1000cc
&nbsp;/&nbsp;
Petrol</span></td>
      </tr>
      <tr>
        <td align="left" valign="middle"><span class="style4"> luggage </span></td>
        <td align="left" valign="middle"><span class="style2">
          2 small        </span></td>
      </tr>
      <tr>
        <td align="left" valign="middle"><span class="style4"> status </span></td>
        <td align="left" valign="middle"><span class="style2">
        Available</span></td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
      </tr>
    </table></td>
    <td rowspan="2" align="center" valign="middle"><p>&nbsp;<span class="text_normal20pxbold">€
      32.5    </span>/day
          </p>
      <p>&nbsp;<span class="style4">total&nbsp;€
            269.1      </span>            <br>
            &nbsp;<span class="style5">save&nbsp;€
            58.5&nbsp;&nbsp;20% OFF
        </span></p>      </td>
  </tr>
  <tr>
    <td height="38" align="center" valign="middle"><img src="/images/cars/b2_toyota_yaris.jpg" alt="Opel Corsa or Toyota Yaris" border="1" /></td>
    </tr>
  <tr>
    <td height="65" align="center" valign="middle"><p>Group&nbsp;
          B2    </p>
      <p>
          
        </p></td>
    <td align="center" valign="middle"><form action="../customeradmin/booking-review.php" method="post" enctype="application/x-www-form-urlencoded" name="form2" target="_self">
      <input type="hidden" name="datep" value="10:00 Friday August 22nd, 2008">            
      <input type="hidden" name="dated" value="10:00 Sunday August 31st, 2008">
            <input type="hidden" name="Locationp" value="Polis Office">
            <input type="hidden" name="Locationd" value="Polis Office">
            <input type="hidden" name="days" value="9">
            <input type="hidden" name="mostdaysrate" value="32.5">
            <input type="hidden" name="off" value="58.5">
            <input type="hidden" name="cat" value="B2">
            <input type="hidden" name="finalprice" value="269.1">
            <input type="hidden" name="car" value="Group B2-Opel Corsa or Toyota Yaris">
<a href="javascript:form2.submit()"><img src="../images/but_bookit.gif" width="80" height="22" border="0"></a>
    </form></td>
  </tr>
</table>

[leonidassavvides]

Answer and this: a php session var an be reinitialized directly[re-asign a value to it] or it must virst unset ? required the unset ?