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!
Related
I am using fputcsv function to export data as CSV file but it is displaying all data in browser instead of downloading this as CSV file. Here is my code
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=export.csv');
$output = fopen('php://output', 'w');
fputcsv($output, $column_headings);
fclose($output);
Data is displaying correctly in browser but I want to download this as export.csv file.I do not know what is wrong with this. Any suggestion regarding this will be appreciated.
You cannot control how the browser handles the text/csv content type, however, you can tell the browser it should treat the data as binary.
header('Content-Type: application/octet-stream');
I added ob_start(); at the start of my file and now I can export files.
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 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 $row['PDF_FILE_STORED'];
The end goal is for the user to download a .csv file. Right now I'm just testing trying to download a simple text file: test.txt. The only thing in this file is the word "test".
Here is the HTML code for files_to_download.php
Test file: <a href='test.php?file=test.txt'>Test.txt</a>
Code for test.php:
if(!(empty($_GET["file"])))
{
$file_name = $_GET["file"];
$path = "path/to/file";
$fullPath = $path . $file_name;
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: inline; attachment; filename=\"$file_name\"");
header("Content-Type: text/plain");
header("Content-Transfer-Encoding: binary");
readfile($fullPath);
}
I've tried variations of the headers above, adding more and removing others. The above seem to be the most common recommended on this site.
I've also tried changing
header("Content-Type: text/plain");
to
header("Content-Type: text/csv");
and get same results: empty .txt or .csv file.
The files are not empty when I open them directly (file browser) from the server. I've checked the permissions of the files and they're both 644, so the entire world can at least read the files. The directory is 777.
Is there a configuration on the Apache server I need to specify that may not be or am I missing something above.
Thanks for looking!
In most cases the path is wrong
Read the text file, then echo the text out after your header() calls.
Here's how I have my csv download set up:
//downloads an export of the user DB
$csv = User::exportUsers();
header('Content-disposition: attachment; filename=userdb.csv');
header('Content-type: text/csv');
echo $csv;
Where exportUsers() creates the csv data. You can easily just replace $csv with the contents of your text file, then echo it out.
And as far as your text file, you can use file_get_contents() to get the contents of your file into a string. Then echo that string.
Try setting the content length of the file:
header('Content-Length: ' . filesize($file));
Also, please have this in mind: file inclusion
In my case, the path was correct. And the download-forcing was working on windows, but not mac.
I figured out after few tests that the header Content-Length was failing. I was using the function filesize on a full url, like :
$url_my_file = "http://my-website.com/folders/file.ext";
header('Content-Length: '.(filesize($url_my_file)));
I replace it by
$url_my_file = "http://my-website.com/folders/file.ext";
$headers = get_headers($url_my_file, 1);
header('Content-Length: '.($headers['Content-Length']));
And ... It's working now :)
The end goal is for the user to download a .csv file. Right now I'm just testing trying to download a simple text file: test.txt. The only thing in this file is the word "test".
Here is the HTML code for files_to_download.php
Test file: <a href='test.php?file=test.txt'>Test.txt</a>
Code for test.php:
if(!(empty($_GET["file"])))
{
$file_name = $_GET["file"];
$path = "path/to/file";
$fullPath = $path . $file_name;
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: inline; attachment; filename=\"$file_name\"");
header("Content-Type: text/plain");
header("Content-Transfer-Encoding: binary");
readfile($fullPath);
}
I've tried variations of the headers above, adding more and removing others. The above seem to be the most common recommended on this site.
I've also tried changing
header("Content-Type: text/plain");
to
header("Content-Type: text/csv");
and get same results: empty .txt or .csv file.
The files are not empty when I open them directly (file browser) from the server. I've checked the permissions of the files and they're both 644, so the entire world can at least read the files. The directory is 777.
Is there a configuration on the Apache server I need to specify that may not be or am I missing something above.
Thanks for looking!
In most cases the path is wrong
Read the text file, then echo the text out after your header() calls.
Here's how I have my csv download set up:
//downloads an export of the user DB
$csv = User::exportUsers();
header('Content-disposition: attachment; filename=userdb.csv');
header('Content-type: text/csv');
echo $csv;
Where exportUsers() creates the csv data. You can easily just replace $csv with the contents of your text file, then echo it out.
And as far as your text file, you can use file_get_contents() to get the contents of your file into a string. Then echo that string.
Try setting the content length of the file:
header('Content-Length: ' . filesize($file));
Also, please have this in mind: file inclusion
In my case, the path was correct. And the download-forcing was working on windows, but not mac.
I figured out after few tests that the header Content-Length was failing. I was using the function filesize on a full url, like :
$url_my_file = "http://my-website.com/folders/file.ext";
header('Content-Length: '.(filesize($url_my_file)));
I replace it by
$url_my_file = "http://my-website.com/folders/file.ext";
$headers = get_headers($url_my_file, 1);
header('Content-Length: '.($headers['Content-Length']));
And ... It's working now :)