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+--- Thread: Cannot modify header information - headers already sent (/showthread.php?tid=41173)
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Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
A PHP Error was encountered
Severity: Warning
Message: Cannot modify header information - headers already sent
Filename: helpers/my_userExel_helper.php
Line Number: 489
Hi buddy most of the time i found above error
Can someone give me appropriate solution for it.
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]toopay[/eluser]
Post the line 489 of your exel helper.
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
[quote author="toopay" date="1304166589"]Post the line 489 of your exel helper.[/quote]
On all these lines same error error comes
486
Code:
header("Content-type: application/zip");Code:
header("Content-Disposition: attachment; filename=$archive_file_name");Code:
header("Pragma: no-cache");Code:
header("Expires: 0");Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]toopay[/eluser]
put this, right BEFORE line 486 :
Code:
if(headers_sent($from, $line)) die ('Headers were already sent at : '.$from.' on line : '.$line);Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
I got this output : Headers were already sent at : on line : 0
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
[quote author="Sudhakar Prajapati" date="1304168206"]I got this output : Headers were already sent at : on line : 0[/quote]
Here is my code
Code:
ob_start();
$objWriter->save('php://output');
$file_name = ob_get_contents();
ob_end_clean();
zipFilesAndDownload($file_name,'./user_data/leads.zip');
function zipFilesAndDownload($file_name,$archive_file_name)
{
//create the object
$zip = new ZipArchive();
//create the file and throw the error if unsuccessful
if ($zip->open($archive_file_name, ZIPARCHIVE::CREATE )!==TRUE) {
exit("cannot open <$archive_file_name>\n");
}
//add each files of $file_name array to archive
$zip->addFromString("leads/export.xls",$file_name);
$zip->close();
//then send the headers to force download the zip file
header('Content-Type: application/vnd.ms-excel');
header("Content-Disposition: attachment;filename=$archive_file_name");
header('Cache-Control: max-age=0');
header("Content-Transfer-Encoding: binary");
header('Pragma: public');
readfile($archive_file_name);
exit;
}What i am missing?
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
Please help me,no one is there?
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]toopay[/eluser]
ob_end_clean() does discard headers! any buffers will have already been sent out to the client.
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]Sudz[/eluser]
[quote author="toopay" date="1304178642"]ob_end_clean() does discard headers! any buffers will have already been sent out to the client.[/quote]
Then Instead of ob_end_clean() what can i use?
I use that to clear buffer after reading buffer contents,
Is there any another alternative.
Cannot modify header information - headers already sent - El Forum - 04-30-2011
[eluser]toopay[/eluser]
try ob_end_flush() instead ob_end_clean()