Cannot send session cache limiter

claire · June 19, 2007

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/minipla/public_html/cart.php:2) in /home/minipla/public_html/cart.php on line 8

could some one help me with this please....its coming from my cart page. ???

kdreg · June 20, 2007

Usually if you get a "headers already sent error message," you need to add output buffering; it must be the very first thing on page, like below:

<?php ob_start(); // Start output buffering ?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"

"http://www.w3.org/TR/html4/loose.dtd">

and, I think you also need to add this at the end of the page:

ob_end_flush();

Hopefully someone who's experienced will come along to clarify or offer other suggestions.

teng84 · June 20, 2007

see the pined topic above

redarrow · June 20, 2007

ob_start() will work but really should sort the problam out.

session_start() <<< always at top off page and there should never be any html before it.

sometimes white spaces cause a problam make sure there are none

<?php session_start();
echo hi;
?> << no white spaces becouse the end <? is the last written statement.

<?php session_start();
echo hi;

?> << a white spaces becouse the end <? is not last written statement.

kdreg · June 20, 2007

Also, another possibility for your specific error (just found the info in some older phpfreak info) is to make sure that <?php session start():

comes before anything else. i.e.,

<?php

session_start();

echo "Blah, blah...";

?>

and not

<?php

echo "Blah, blah...";

session_start();

?>

claire · June 20, 2007

thank you for your time

this is the page.....maybe you can see somthing i cant.

<?php

//call the session id

session_id();

//check if session already started. Start if not

if (!isset ($_SESSION))

session_start();

//connect to the database

require_once('connection1.php');

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

body {

margin-top: 0px;

margin-bottom:20px;

}

#box2 #prodlist .proddiv {

}

.style1 {color: #000000}

.style3 {color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; }

.style5 {font-family: Geneva, Arial, Helvetica, sans-serif}

.style6 {font-family: Verdana, Arial, Helvetica, sans-serif}

a {

color: #666666;

}

.style7 {color: #333333}

</style>

</head>

</object>

</object>

</span><span class="training-button">

</object>

</span><span class="faq-button">

</object>

</span>

</object>

</span></p>

<?php

/*

assign the actual session id value to a variable. You are going to use the value in a query below to bring back the correct records from the carttemp table in the database

*/

$sessid = session_id();

//decare the variable 'total'. The value of this will change as items are added to the cart

$total=0;

//return all items for this session id from the carttemp table

$query = "SELECT * FROM carttemp WHERE sess = '$sessid'";

$results = @mysql_query($query)

or die (mysql_query());

//display number of products in cart

$rows = mysql_num_rows($results);

echo "You currently have " .$rows. " product(s) in your cart. <br />";

?>

</tr>

<tr>

<br />

<?php

/*

display each item from the carttemp table, by using the product id for each record in the carttemp table to query the products table.

Reminder: the extract() function accesses the fields in an array and enables you

to refer to the field names (table column names) as variables, without ever

having declared the variables previously

*/

while ($row = mysql_fetch_array($results))

{

extract ($row);

$prod = "SELECT * FROM products WHERE prodnum = '$prodnum'";

$prod2 = mysql_query($prod);

$prod3 = mysql_fetch_array($prod2);

extract ($prod3);

/*

declare a form with hidden variables needed to be passed when a user elects

to change the quantity of an item

*/

echo "<td>";

echo "<a href = \"getprod.php?prodid=" .

$prodnum . "\">";

//echo "<img src= \"getprod.php?prodid=" .

// $prodnum. "\">";

echo "<img src=\"teeshirts/$img_tmb\" width=\"$t_w\" height=\"$t_l\"/><br />IMAGE</a></td>\n";

echo "</a></td>\n";

echo "<td>";

echo "<a href = \"getprod.php?prodid=" .

$prodnum . "\">";

echo $name;

echo "</a></td>\n";

echo "<td class=\"right\">";

echo $price;

echo "</td>\n";

echo "<td class=\"right\">";

//get extended price

$subtotal = $price * $quan;

//this adds commas to the number displayed. e.g. 1,000.00

$extprice = number_format ($subtotal, 2);

echo $extprice;

echo "</td>\n";

//CHANGE

echo "<td><form method =\"post\" action=\"change.php\">

<br />

<input type=\"text\" name=\"qty\" size=\"2\" value=\"$quan\">";

echo "</td>\n";

echo "<td>";

echo "<input type=\"submit\" name=\"Submit\" value=\"Change Qty\">

</form></td>\n";

echo "<td>";

/*

declare a form with hidden variables needed to be passed when a user elects to

delete an item from the cart ..............DELETE

*/

echo "<form method = \"post\" action=\"delete.php\">

<input type=\"hidden\" name=\"sessid\" value=\"$sessid\">";

echo "<input type=\"submit\" name=\"Submit\" value=\"Delete Item\">

</form></td>\n";

echo "</tr>\n\n";

/*

remember that this is a while loop so the next line will change

with each iteration of the loop. When $total is printed to the

screen below it will have reached a value equal to the sum of all items

*/

$total = $subtotal + $total;

}

?>

<br />

<tr>

<br />

<td colspan="4" class="right">Your total before shopping is:</td>

</tr>

</table>

<br />

<?php

/*

The next section deals with what happens when the user clicks "proceed tocheckout"

Three possibilities exist at present. The page the user is directed to next

is dependant on which page they were on when they clicked to access the cart.

*/

//if returning user is changing cart details after clicking "proceed to checkout"

if (isset($_SESSION['cus_id']))

{

echo "<form method=\"post\" action=\"checkout2.php\">";

}

//if new user is changing cart details before clicking "proceed to checkout"

elseif (isset($_SESSION['new_user_form']))

{

echo "<form method=\"post\" action=\"checknew.php\">";

}

//if any user is changing cart details before clicking "proceed to checkout"

else

{

echo "<form method=\"post\" action=\"checkout.php\">";

}

?>

</form>

<br />

</div>

</body>

</html>

claire · June 20, 2007

also so my add prod page is having the same problem

<?php

session_id();

session_start();

?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

body {

margin-top: 0px;

margin-bottom:20px;

}

#box2 #prodlist .proddiv {

}

.style1 {color: #000000}

.style3 {color: #000000; font-family: Verdana, Arial, Helvetica, sans-serif; }

.style5 {font-family: Geneva, Arial, Helvetica, sans-serif}

.style6 {font-family: Verdana, Arial, Helvetica, sans-serif}

a {

color: #666666;

}

.style7 {color: #333333}

</style>

</head>

//<?php

//connect to the database

require_once('connection1.php');

//declare variables and assign them values from form

echo "<br />";

$qty =$_POST['qty'];

$prodnum =$_POST['prodnum'];

//assign the value of the session id to $sess

$sess =session_id();

/*

add new item to the temporary cart table of the database. This is the table which is queried when you view the contents of your cart

*/

$query = "INSERT INTO carttemp (sess, quan, prodnum)

VALUES ('$sess','$qty', '$prodnum')";

$results = mysql_query($query)

or die(mysql_error());

//include the cart.php file in this page

include("cart.php");

?>

</body>

</html>

kdreg · June 21, 2007

Just a thought, but since you mention the problem appears on your cart page, could the error be in cart.inc? If so, maybe it would be helpful to post cart.inc here.

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