I am trying to create a CSV file from my web page and am having issue with line feeds/carraige returns.
I am building up the CSV string via Javascript and then adding '\u000A' + "\u000D" to the end of each line.
I then pass my CSV sting to a PHP program via AJAX. My PHP logic to create the file is: -
header('Content-Disposition: attachment; filename="effortTool.csv"');
header('Content-Type: text/plain');
header('Content-Length: ' . strlen($content));
When I view the file it does not contain any line feeds/carraige retuns.
If I output the CSV string as an "alert", I can see it is formatting corerctly. This tells me that the line feeds characters are being added but are being lost when downloaded as a file.
Any ideas?
Thanks
Martin
Use following code to generate CSV file:-
ob_clean();
header("Content-type: application/vnd.ms-excel");
header( "Content-disposition: filename=effortTool.csv");
header('Content-Length: ' . strlen($content));
print $content;
exit;
This was working for me, hope it'll work for you too.
You put the file content on the meta data of type Content-Length, this is wrong.
Try this: php download file: header()
Related
I am having a problem with my webpage. I am building a report tool for downloading data as .csv - I have a php skript which aggregates the data and builds a csv from it. The skript is invoked with the exec() command, detailed code is below. The skript itself uses file_put_contents() to generate the file, which is then stored in my /tmp/ folder until its downloaded (I am working in a dockerized environment and our filter rules delete the file at the next request, but I could store the file permanently somewhere else if that would be neccessary). I am then checking if the file is present with file_exists() and proceed to invoke my download function. In Firefox I get the desired result, a file with the correct content of only the csv data.
My main Problem is: When I download the csv in Chrome I get the csv data followed by the html source of my page - so starting with <!doctype html> in the first line after the csv data, then <html lang="de">in the next line of te csv and so on..
Let me show you some code:
In my skript:
private function writeToFile($csv)
{
$fileName = '/path/to/file' '.csv';
echo "\n" . 'Write file to ' . $fileName . "\n";
file_put_contents($fileName, $csv);
}
In my page class:
$filePath = '/path/to/finished/csv/'
exec('php ' . $skriptPath . $skriptParams);
if (file_exists($filePath)) {
$this->downloadCsv($filePath);
} else {
$pageModel->addMessage(
new ErrorMessage('Error Text')
);
}
My download function in the same class:
private function downloadCsv($filePath)
{
header('Content-Description: File Transfer');
header('Content-Type: text/csv');
header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
header('Content-Length: ' . filesize($filePath));
readfile($filePath);
}
The shown above is working in Firefox, but not in Chrome. I already tried to clear the output buffer with ob_clean() or send and disable it with ob_end_flush() but nothing worked for Chrome.
I also tried something like this in my download function:
header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
$fp =fopen($filePath, 'rw');
fpassthru($fp);
fclose($fp);
This produces the same results in Firefox and Chrome - I get the csv data followed by the html sourcecode mixed into the same file.
I am working within a Symfony framework if that could be from help, I saw there are some helper functions for file downloads but I so far I could not use them with success..
Until now my target is only to get the download working in Chrome to have a working mvp which can go into production - it is supposed to be for internal use only, so I don't have to care about IE or some other abominations because our staff is told to use a normal browser... But when someone sees flaws in the general concept feel free to tell me!
Thanks in advance :)
So I managed to get it working, I was on the wrong track with the output buffer, but a simple exit()after my readfile()was enough to stop parts of the html ending up in the csv file.
Code:
private function downloadCsv($filePath)
{
header('Content-Description: File Transfer');
header('Content-Type: text/csv');
header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
header('Content-Length: ' . filesize($filePath));
readfile($filePath);
exit;
}
I'm trying to output data returned by an MS SQL query to an Excel or CSV file with PHP.
I've used the script in this answer and can output the file OK. Without the header lines (at the bottom of my code) it saves in my server's folder structure rather than outputs as a download to the browser.
If I add the header lines, it ouputs to a CSV file but writes the page's HTML to the file rather than the extract from the database! Am I missing a setting somewhere? I tried running the code on a page with no HTML in it (PHP and SQL code only), but it still happens.
// Give the file a suitable name:
$FileName= $PartNumber.".csv";
$fp = fopen($FileName, 'w');
// Connect to MS SQL server; the actual database is chosen in the form
// ConnSQL defined in inc/dbconn/config.php
ConnSQL($idDatabase);
// the query is a biggie; here it is:
require 'inc_sql.php';
// run it through the SQL server
$rstBOM = sqlsrv_query($GLOBALS['ConnSQL'], $sqlBOM);
while ($export= sqlsrv_fetch_array($rstBOM, SQLSRV_FETCH_ASSOC)) {
if (!isset($headings))
{
$headings = array_keys($export);
fputcsv($fp, $headings, ',', '"');
}
fputcsv($fp, $export, ',', '"');
}
// force download csv - exports HTML to CSV!
header("Content-type: application/force-download");
header('Content-Disposition: inline; filename="'.$FileName.'"');
header("Content-Transfer-Encoding: Binary");
header("Content-length: ". filesize($FileName));
header('Content-Type: application/excel');
header('Content-Disposition: attachment; filename="'.$FileName.'"');
fclose($fp);
Any ideas where I'm going wrong please?
You need to output your csv file to the browser simply by putting
readfile($FileName);
At the end of your code after the fclose($fp); function.
Otherwise, browser receives the headers for files, but no content in sent from your PHP code.
You could also generate your csv file on the fly and just echo $csvFileContents; instead. This would prevent server from creating and writing data to file, which could lead to security breaches.
Good luck!
I need help with this script. I'm trying to get this binary file stored in a sql server DB . The main problem is that , each time im trying to show it in my browser or to download it, the file is corrupted . Heres my code:
$binary = $row['PDF_FILE_STORED'];
file_put_contents('my.pdf', $binary);
header('Content-type: application/pdf');
header("Content-Transfer-Encoding: Binary");
header("Content-Length: ".filesize($binary));
header("Content-Disposition: attachment;filename=my.pdf");
ob_clean();
flush();
echo $binary;
Is there a problem with the encoding aspect? I just got this warning in my brower's console : "Resource interpreted as Document but transferred with MIME type application/pdf" . Any advices ?
To just download the pdf file, you don't need to save it locally on the server. You don't need to send content-length as that should be done automatically and I would skip the content-transfer-encoding as well.
If there was no output yet, you can also skip dealing with the output buffer.
Try this:
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename=my.pdf');
echo $row['PDF_FILE_STORED'];
im writing a basic script to download csv file based on database information,
in my dashboard/index.php i use GET and switch to include pages
so when i click on the link dashboard.php?link=export.php
i have a table with the all the data , there i have a link that i can download my csv file , my problem is that when i click to export.csv , i have an text output and not download file so i put those code :
header("Content-type: text/csv");
header("Content-Disposition: attachment; filename={$filename}.csv");
header("Pragma: no-cache");
header("Expires: 0");
but always i see the content in text format and with an error
Warning: Cannot modify header information - headers already sent by (output started at /home/*/public_html/dev/dashboard/index.php:78) in /home/*/public_html/dev/dashboard/component/export.php on line 39
so i ask how can i resolve this issue , can i remove the header for the index in the export.php and set a new one also there to download the file or what extacly
maybe i need to change just in the export.php the Content-Type to be text/csv
but is alrady sent text/html .
please help to resolve this
thank you
As you can see, there is something already sent to output (printed) in your index.php file which is including your export.php file.
Make sure you are not printing anything before the headers. In some cases might be a space between the opening <?php tags or something little like that. btw mind that switch inclusion cases you have.
Other way is to try to use header_remove(); before the statements in export.php
Do not add anything before header in my case i was getting record from data base.
If you have function to download csv the add following header at top in the function like:
function exportCsv($date) {
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=data.csv');
.
.
.
.
}
I have a PHP file that generates xls files using the module found at http://pear.php.net/package/Spreadsheet_Excel_Writer/
I can create the sample document just fine and when I open it, it looks fine.
My next step it to turn it into a downloadable link. To do that, I did this:
$mimeType = "application/vnd.ms-excel";
$file_name = "test.xls";
$file_path = "/tmp/".$file_name;
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header('Content-Type: application/' . $mimeType);
header('Content-Length: '.$size);
header("Content-Disposition: attachment;filename=$file_name ");
header("Content-Transfer-Encoding: binary ");
// open the file in binary read-only mode
// display the error messages if the file can´t be opened
$file = & fopen($file_path, 'rb');
if ($file) {
// stream the file and exit the script when complete
fpassthru($file);
exit;
} else {
echo $err;
}
When I download the file however, it contains a lot of garbage data both in Excel and OpenOffice. The diff says that then binary file in the /tmp folder and the downloaded file are different from each other. I'm guessing that it has something to do with the headers or with fpassthru but I haven't had much luck with debugging the issue.
Any ideas on what the problem is?
The multiple Content-Type headers are uncessary. You're essentially saying that the file is a muffin and a pizza and a ford taurus all at the same time. All you need is the application/octet-stream version, unless you want to serve up the exact mime type.
As well, is there any reason you're trying to turn the file handle returned by fopen() into a reference?
Try something simpler:
<?php
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment;filename=$file_name");
readfile("/tmp/test.xls");
exit();
?>
and see if that does any better.
Just make sure that you don't send ANYTHING out to the browser BEFORE the actual file content gets send.
It might just be some php 'error' or even 'notice' that Spreadsheet_Excel_Writer is producing and you don't even see. Or it might be a closing '?>' tag thats followed by s simple space or newline.
I had a similar error where the file that was generated inside the web folders were working. However the delivery using header('...') gave me corrupt files. This was due to a single space at the end of one php file after the closing '?>' tag.
I am using the same library and I just discovered that the files in the library itself are creating the whitespace.
Solution: In the following files remove the whitespace at the end of the file, or remove the ?> closing tag at the end.
Files to edit (all files in the Spreadsheet_Excel_Writer package):
Writer.php
Workbook.php
Worksheet.php
PPS.php
Parser.php
OLE.php
Parser.php
File.php
BIFFWriter.php
Validator.php
Root.php
Add the following code at the top of the page where the excel file is generated
ob_clean();
This would clear all the gibberish data.Also check for any echo statements.If echo statements are present, remove them. The data should always present in format specified by excel package.