The Dreaded Headers Already Sent error

1/10/2013 2:45 am | #1 acaciasd344844

Hi Jason,

I am pleased to say that I have the UE working correctly now and producing multiple emails at the touch of a button.

The thing is even though it is working I get quite a lot of header sessions like the following... Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /homepages/37/d277122941/htdocs/midas2demo/pcclient/invoice-email_multi_comm_logo.php:121) in /homepages/37/d277122941/htdocs/midas2demo/pcclient/invoice-email_multi_comm_logo.php on line 202

I read a number of posts especially this one... showthread.php?t=19285

I have spent what feels like hours going through each line of the code to track this down.

But I just cant see or find anything. Could it be something else?

Any clues would be a valuable lesson for the future. I have attached the file causing the error... invoice-email_multi_comm_logo.php

john

Attached Files

john henderson header already sent error.zip

1/10/2013 8:20 am | #2 Jason ByrnesWebAssist

you have code in the body of the page that should be before the doctype tag.

the code at lines 175 - 288:

php:

<?php

    // RepeatSelectionCounter_2 Begin Loop

    $RepeatSelectionCounter_2_IterationsRemaining = $RepeatSelectionCounter_2_Iterations;

    while($RepeatSelectionCounter_2_IterationsRemaining--){

        if($RepeatSelectionCounterBasedLooping_2 || $row_Recordsetmultiprint){            

        $maxRows_Recordsetdisplayproducts = 10;

$pageNum_Recordsetdisplayproducts = 0;

if (isset($_GET['pageNum_Recordsetdisplayproducts'])) {

  $pageNum_Recordsetdisplayproducts = $_GET['pageNum_Recordsetdisplayproducts'];

}

$startRow_Recordsetdisplayproducts = $pageNum_Recordsetdisplayproducts * $maxRows_Recordsetdisplayproducts;

$colname_Recordsetdisplayproducts = "-1";

if (isset($_GET['invoiceid'])) {

  $colname_Recordsetdisplayproducts = $_GET['invoiceid'];

}

$paramInvoiceID_Recordsetdisplayproducts = "-1";

if (isset($row_Recordsetmultiprint['invoiceid'])) {

  $paramInvoiceID_Recordsetdisplayproducts = (get_magic_quotes_gpc()) ? $row_Recordsetmultiprint['invoiceid'] : addslashes($row_Recordsetmultiprint['invoiceid']);

}

mysql_select_db($database_midas0001, $midas0001);

$query_Recordsetdisplayproducts = sprintf("SELECT * FROM products  left join invoice on invoice.invoiceid = products.invoiceid WHERE products.invoiceid = %s AND invoice.print = '1' ORDER BY productid", GetSQLValueString($paramInvoiceID_Recordsetdisplayproducts, "int"));

$Recordsetdisplayproducts = mysql_query($query_Recordsetdisplayproducts, $midas0001) or die(mysql_error());

$row_Recordsetdisplayproducts = mysql_fetch_assoc($Recordsetdisplayproducts);

$totalRows_Recordsetdisplayproducts = mysql_num_rows($Recordsetdisplayproducts);?>

<?php require_once("../webassist/email/mail_php.php"); ?>

<?php require_once("../webassist/email/mailformatting_php.php"); ?>

<?php

if (!isset($_SESSION))session_start();

if ((($_SERVER["REQUEST_METHOD"] == "POST") && (isset($_SERVER["HTTP_REFERER"]) && strpos(urldecode($_SERVER["HTTP_REFERER"]), urldecode($_SERVER["SERVER_NAME"].$_SERVER["PHP_SELF"])) > 0) && isset($_POST)))     {

  //WA Universal Email object="mail"

  set_time_limit(0);

  $EmailRef = "waue_invoice-email_multi_comm_logo_2";

  $BurstSize = 200;

  $BurstTime = 1;

  $WaitTime = 1;

  $GoToPage = "confirminvoiceprintoption.php";

  $RecipArray = array();

  $StartBurst = time();

  $LoopCount = 0;

  $TotalEmails = 0;

  $RecipIndex = 0;

  // build up recipients array

  $CurIndex = sizeof($RecipArray);

  $RecipArray[$CurIndex] = array();

  $RecipArray[$CurIndex ][] = "".$row_Recordsetmultiprint['cust_email']  ."";

  $TotalEmails += sizeof($RecipArray[$CurIndex]);

  $RealWait = ($WaitTime<0.25)?0.25:($WaitTime+0.1);

  $TimeTracker = Array();

  $TotalBursts = floor($TotalEmails/$BurstSize);

  $AfterBursts = $TotalEmails % $BurstSize;

  $TimeRemaining = ($TotalBursts * $BurstTime) + ($AfterBursts*$RealWait);

  if ($TimeRemaining < ($TotalEmails*$RealWait) )  {

    $TimeRemaining = $TotalEmails*$RealWait;

  }

  $_SESSION[$EmailRef."_Total"] = $TotalEmails;

  $_SESSION[$EmailRef."_Index"] = 0;

  $_SESSION[$EmailRef."_Remaining"] = $TimeRemaining;

  while ($RecipIndex < sizeof($RecipArray))  {

    $EnteredValue = is_string($RecipArray[$RecipIndex][0]);

    $CurIndex = 0;

    while (($EnteredValue && $CurIndex < sizeof($RecipArray[$RecipIndex])) || (!$EnteredValue && $RecipArray[$RecipIndex][0])) {

      $starttime = microtime_float();

      if ($EnteredValue)  {

        $RecipientEmail = $RecipArray[$RecipIndex][$CurIndex];

      }  else  {

        $RecipientEmail = $RecipArray[$RecipIndex][0][$RecipArray[$RecipIndex][2]];

      }

      $EmailsRemaining = ($TotalEmails- $LoopCount);

      $BurstsRemaining = ceil(($EmailsRemaining-$AfterBursts)/$BurstSize);

      $IntoBurst = ($EmailsRemaining-$AfterBursts) % $BurstSize;

      if ($AfterBursts<$EmailsRemaining) $IntoBurst = 0;

      $TimeRemaining = ($BurstsRemaining * $BurstTime * 60) + ((($AfterBursts<$EmailsRemaining)?$AfterBursts:$EmailsRemaining)*$RealWait) - (($AfterBursts>$EmailsRemaining)?0:($IntoBurst*$RealWait));

      if ($TimeRemaining < ($EmailsRemaining*$RealWait) )  {

        $TimeRemaining = $EmailsRemaining*$RealWait;

      }

      $CurIndex ++;

      $LoopCount ++;

      session_commit();

      session_start();

      $_SESSION[$EmailRef."_Index"] = $LoopCount;

      $_SESSION[$EmailRef."_Remaining"] = round($TimeRemaining);

      session_commit();

      wa_sleep($WaitTime);

      include("../webassist/email/waue_invoice-email_multi_comm_logo_2.php");

      $endtime = microtime_float();

      $TimeTracker[] =$endtime - $starttime;

      $RealWait = array_sum($TimeTracker)/sizeof($TimeTracker);

      if ($LoopCount % $BurstSize == 0 && $CurIndex < sizeof($RecipArray[$RecipIndex]))  {

        $TimePassed = (time() - $StartBurst);

        if ($TimePassed < ($BurstTime*60))  {

          $WaitBurst = ($BurstTime*60) -$TimePassed;

          wa_sleep($WaitBurst);

        }

        else  {

          $TimeRemaining = ($TotalEmails- $LoopCount)*$RealWait;

        }

        $StartBurst = time();

      }

      if (!$EnteredValue)  {

        $RecipArray[$RecipIndex][0] =  mysql_fetch_assoc($RecipArray[$RecipIndex][1]);

      }

    }

    $RecipIndex ++;

  }

  $_SESSION[$EmailRef."_Total"] = 0;

  $_SESSION[$EmailRef."_Index"] = 0;

  $_SESSION[$EmailRef."_Remaining"] = 0;

  session_commit();

  session_start();

  if ($GoToPage!="")     {

    header("Location: ".$GoToPage);

  }

}

?>

does not belong in the page body. It should come before the doctype tag.

1/11/2013 2:54 am | #3 acaciasd344844

Blinking Headers

Hi Jason,

I did as you said, but then it stopped producing the emails or sometimes just produced one or two. Apart from the errors the page works exactly as It should now. So feeling a bit frustrated with this blinking page.

john

1/15/2013 3:20 am | #5 acaciasd344844

Headers

Hi Jason,

Blinking Headers does not mean they are blinking its just an English term like dammed headers or blasted headers. But they are still repeating themselves although the email is working. As I said I did try moving the code above the doctype but then it would only send one out and then stopped producing the correct data.

John

1/15/2013 1:41 pm | #6 Jason ByrnesWebAssist

I have created a support ticket so we can look into this issue further.

To view and edit your support ticket, please log into your support history:
supporthistory.php

If anyone else is experiencing this same issue, please append to this thread.

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The Dreaded Headers Already Sent error

1/10/2013 2:45 am | #1 acaciasd344844