error: cannot send session cookie.. already sent

I've built several successful sites with eCart, but now I made a new one using the exact same code as before (just changed the names (like connBSM to connMSB), but when I load the first page I get this error message:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /Applications/MAMP/htdocs/ProRes_from_Bill/TMPTAIJRIRTDU.php:1) in /Applications/MAMP/htdocs/ProRes_from_Bill/WA_eCart/WA_eCart_Definition_PHP.php on line 465

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /Applications/MAMP/htdocs/ProRes_from_Bill/TMPTAIJRIRTDU.php:1) in /Applications/MAMP/htdocs/ProRes_from_Bill/WA_eCart/WA_eCart_Definition_PHP.php on line 465

This even happens when a use the tutorial and complete the BlueSky music sample.

What do I need to change?

see the following post for details on the headers already sent error:
showthread.php?t=19285



where you report the issue at line 1, look mostly at the last 2 causes in post 1) virtual() function for includes 2) Unicode BOM Signature.

I followed the directions and checked 1) and 2) in your response, but I still get the same error messages (the same one twice). This is the error msg:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /Applications/MAMP/htdocs/ProRes_from_Bill/TMP5LMPITUS5.php:5) in /Applications/MAMP/htdocs/ProRes_from_Bill/WA_eCart/WA_eCart_Definition_PHP.php on line 465

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /Applications/MAMP/htdocs/ProRes_from_Bill/TMP5LMPITUS5.php:5) in /Applications/MAMP/htdocs/ProRes_from_Bill/WA_eCart/WA_eCart_Definition_PHP.php on line 465

I tried attaching a screen capture of the definition file so you can see what it looks like in that section (screen cap so you can see the line numbers), the "Manage Attachments" just gives me a blank window, so I'll copy and paste just the code (I added a label for line 465):

//Session Storage Functions
function Session_SaveCart() {
if (!session_id()) session_start();
$theCartString = "";
for ($n=0; $n<sizeof($this->Items); $n++) {
$countIt = 0;
if ($n!=0) {
$theCartString .= "§";
}
foreach ($this->Items[$n] as $m) {
if ($countIt != 0) $theCartString .= "|WAECART|";
$theCartString .= $m;
$countIt++;
}
}
$_SESSION[$this->CartName."_Items"] = $theCartString;
}

function Session_GetContent() {
*Line 465:* if (!session_id()) session_start();
$retArray = array();
if (isset($_SESSION[$this->CartName."_Items"]) && $_SESSION[$this->CartName."_Items"] != "") {
$theCartString = $_SESSION[$this->CartName."_Items"];
$theItemArray = explode("§",$theCartString);
for ($x=0; $x<sizeof($theItemArray); $x++) {
$theValueArray = explode("|WAECART|",$theItemArray[$x]);
$toExec = "new ".$this->CartName. "_ItemDefinition(";
for ($y=0; $y<sizeof($theValueArray); $y++) {
if ($y != 0) $toExec.=", ";
$toExec .= '"'.str_replace("\'","'",addslashes($theValueArray[$y])).'"';
}
eval("\$nextItem =".$toExec.");");
$retArray[sizeof($retArray)] = $nextItem;
}
}
return $retArray;
}


Thanks, Jim

you also posted this as a response to the thread I linked to. See my reply there.
showpost.php?p=94828&postcount=3

<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
<?php
//WA eCart Include
require_once("WA_eCart/ProResCart_PHP.php");
?>
<?php require_once('Connections/connProRes.php'); ?>
<?php
$ProResCart->GetContent();
?>

looking at the code you pasted, it looks file to me too, but that's not what the error is saying.


my guess is a blank space at the end of line 4:
"?> "

but i cant say without seeing the actual code.


I would need you to send a copy of the page in a zip archive to examine the code.