I have xampp web server, and trying to download file using headers! Don't know what is wrong, but file not starting to download and not appears in browser! In http response I have the source of file!
header("Content-disposition: attachment;filename=d:\\archive\\result.csv");
header("Content-type: application/pdf");
readfile("sample.pdf");
Can any one halp me, please!
Try this
header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename=file:///D:\archive\result.csv' );
Related
Now I am developing codeigniter site.
I have one issue.
In order to read&open pdf into web browser.
header("Content-type:application/pdf");
header('Content-Type: application/vnd.ms-excel'); //mime type
header('Cache-Control: max-age=0'); //no cache
header("Content-Disposition:attachment;filename=\"".$file."\"");
readfile($filePath);
above code $file is filename and $filePath is pdf file path.
When it runs on local server, $filePath is value such as "http://localhost/.pdf" and it runs well.
But when runs on hosting server, this value is "http://.com/***.pdf"
And doesn't run.
We can not open with pdf format error.
file content didn't include readed.
I know that is cause of URL issue.
But I have no issue!
Your Content-Disposition should be inline if you want to display the file in the browser and not as a download but I guess it doesn't really matter if you can get it to work.
If your allow_url_fopen config in PHP is set to Off, you will not be able to read URL file from within your PHP script.
Anyway, your code should look something like this.
<?php
$file = "lesson2.pdf";
$filePath = "http://kmmc.in/wp-content/uploads/2014/01/lesson2.pdf";
header("Content-Type: application/pdf");
header("Cache-Control: max-age=0");
header("Content-Disposition: inline; filename=\"" . $file . "\"");
readfile($filePath);
I have a CSV file on my server. If a user clicks on a link it should download, but instead it opens up in my browser window.
My code looks as follows
<a href="files/csv/example/example.csv">
Click here to download an example of the "CSV" file
</a>
It's a normal webserver where I have all of my development work on.
I tried something like:
<a href="files/csv/example/csv.php">
Click here to download an example of the "CSV" file
</a>
Now the contents of my csv.php file:
header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename=example.csv');
header('Pragma: no-cache');
Now my issue is it's downloading, but not my CSV file. It creates a new file.
.htaccess Solution
To brute force all CSV files on your server to download, add in your .htaccess file:
AddType application/octet-stream csv
PHP Solution
header('Content-Type: application/csv');
header('Content-Disposition: attachment; filename=example.csv');
header('Pragma: no-cache');
readfile("/path/to/yourfile.csv");
Or you can do this using HTML5. Simply with
<a href="example.csv" download>download not open it</a>
This cannot be done reliably, since it's up to the browser to decide what to do with an URL it's been asked to retrieve.
You can suggest to the browser that it should offer to "save to disk" right away by sending a Content-disposition header:
header("Content-disposition: attachment");
I'm not sure how well this is supported by various browsers. The alternative is to send a Content-type of application/octet-stream, but that is a hack (you're basically telling the browser "I'm not telling you what kind of file this is" and depending on the fact that most browsers will then offer a download dialog) and allegedly causes problems with Internet Explorer.
Read more about this in the Web Authoring FAQ.
Edit You've already switched to a PHP file to deliver the data - which is necessary to set the Content-disposition header (unless there are some arcane Apache settings that can also do this). Now all that's left to do is for that PHP file to read the contents of the CSV file and print them - the filename=example.csv in the header only suggests to the client browser what name to use for the file, it does not actually fetch the data from the file on the server.
Here is a more browser-safe solution:
$fp = #fopen($yourfile, 'rb');
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
{
header('Content-Type: "application/octet-stream"');
header('Content-Disposition: attachment; filename="yourname.file"');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header("Content-Transfer-Encoding: binary");
header('Pragma: public');
header("Content-Length: ".filesize($yourfile));
}
else
{
header('Content-Type: "application/octet-stream"');
header('Content-Disposition: attachment; filename="yourname.file"');
header("Content-Transfer-Encoding: binary");
header('Expires: 0');
header('Pragma: no-cache');
header("Content-Length: ".filesize($yourfile));
}
fpassthru($fp);
fclose($fp);
Configure your server to send the file with the media type application/octet-stream.
This means that your browser can handle this file type.
If you don't like it, the easiest method would be offering ZIP files. Everyone can handle ZIP files, and they are downloadable by default.
Nice clean solution:
<?php
header('Content-Type: application/download');
header('Content-Disposition: attachment; filename="example.csv"');
header("Content-Length: " . filesize("example.csv"));
$fp = fopen("example.csv", "r");
fpassthru($fp);
fclose($fp);
?>
A previous answer on this page describes how to use .htaccess to force all files of a certain type to download. However, the solution does not work with all file types across all browsers. This is a more reliable way:
<FilesMatch "\.(?i:csv)$">
ForceType application/octet-stream
Header set Content-Disposition attachment
</FilesMatch>
You might need to flush your browser cache to see this working correctly.
If you are doing it with your application itself... I hope this code helps.
HTML
In href -- you have to add download_file.php along with your URL:
<a class="download" href="'/download_file.php?fileSource='+http://www.google.com/logo_small.png" target="_blank" title="YourTitle">
PHP
/* Here is the Download.php file to force download stuff */
<?php
$fullPath = $_GET['fileSource'];
if($fullPath) {
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);
switch ($ext) {
case "pdf":
header("Content-Disposition: attachment; filename=\"" . $path_parts["basename"]."\""); // Use 'attachment' to force a download
header("Content-type: application/pdf"); // Add here more headers for diff. extensions
break;
default;
header("Content-type: application/octet-stream");
header("Content-Disposition: filename=\"" . $path_parts["basename"]."\"");
}
if($fsize) { // Checking if file size exist
header("Content-length: $fsize");
}
readfile($fullPath);
exit;
}
?>
To force download you may use Content-Type: application/octet-stream header, which is supported by most browsers:
function downloadFile($filePath)
{
header("Content-type: application/octet-stream");
header('Content-Disposition: attachment; filename="' . basename($filePath) . '"');
header('Content-Length: ' . filesize($filePath));
readfile($filePath);
}
A BETTER WAY
Downloading files this way is not the best idea especially for large files. PHP will require extra CPU / Memory to read and output file contents and when dealing with large files may reach time / memory limits.
A better way would be to use PHP to authenticate and grant access to a file, and actual file serving should be delegated to a web server using X-SENDFILE method (requires some web server configuration):
X-SENDFILE is natively supported by Lighttpd: https://redmine.lighttpd.net/projects/1/wiki/X-LIGHTTPD-send-file
Apache requires mod_xsendfile module: https://tn123.org/mod_xsendfile/ On Ubuntu may be installed by: apt install libapache2-mod-xsendfile
Nginx has a similar X-Accel-Redirect header: https://www.nginx.com/resources/wiki/start/topics/examples/xsendfile/
After configuring web server to handle X-SENDFILE, just replace readfile($filePath) with header('X-SENDFILE: ' . $filePath) and web server will take care of file serving, which will require less resources than using PHP readfile.
(For Nginx use X-Accel-Redirect header instead of X-SENDFILE)
Note: If you end up downloading empty files, it means you didn't configure your web server to handle X-SENDFILE header. Check the links above to see how to correctly configure your web server.
I wrote a script on PHP running on Wamp Server, which forces a download of a .txt file. The script looks as follows:
header("Content-Type: application/octet-stream");
$newfile = "data.txt";
header("Content-Disposition: attachment; filename=" . urlencode($newfile));
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Description: File Transfer");
header("Content-Length: " . filesize($newfile));
flush(); // this doesn't really matter.
$fp = fopen($newfile, "r");
while (!feof($fp))
{
echo fread($fp, 65536);
flush(); // this is essential for large downloads
}
fclose($fp);
This code is working well.
But the problem is, I've connected my Android device to PC, and able to download this file by using any other browsers, but NOT Android Default Web Browser.
Does anybody know why the download fails on the default browser? But can be downloaded from other on Android?
The Android browser is really picky about the HTTP headers for some reason.
This page will give you some insight about the matter: http://www.digiblog.de/2011/04/android-and-the-download-file-headers/
To quote part of the page, if you use this line of code, it probably won't work.
Content-Type: application/force-download
The page also gives you some possible solutions.
I have Android app on my server and also have php code like:
header('Content-Type: application/vnd.android.package-archive');
header('Content-Disposition: attachment; filename="test.apk"');
readfile('test.apk');
My mobile with default web browser is downloading this file in the way of reading apk file on the screen. I expected some kind of dialogue like: save it as or/and where do you want to save it instead.
What I am doing wrong?
Is there any way to save it automatically, meaning without any dialogue?
Try:
header("Cache-Control: public");
header("Content-Description: File Transfer");
header('Content-Type: application/vnd.android.package-archive');
header("Content-Transfer-Encoding: binary");
header('Content-Disposition: attachment; filename="test.apk"');
readfile('C4A.apk');
you should try one of these:
check the mime type configuration on your server. APK Files
add the apk extension to apache
also, check this question. However the server is .net, not php.
I've been using a PHP script to export data from my database (mysql) to a XLS file.
While the file export process is working fine on Firefox and IE.
I am getting errors when trying to export using Google Chrome.
The Google Chrome error is
Duplicate headers received from server
The response from the server contained duplicate headers. This problem is generally the result of a misconfigured website or proxy. Only the website or proxy administrator can fix this issue.
Error 349 (net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION): Multiple distinct Content-Disposition headers received. This is disallowed to protect against HTTP response splitting attacks.
I need some assistance on this.
Thanks
I've found out what my problem was in the header section of the PHP export code. The incorrect and correct lines are as follows:
Incorrect
header("Content-Disposition: attachment;filename=\"".$this->filename."\"");
Correct
header("Content-Disposition: attachment; filename=\"".$this->filename."\"");
The correction being adding a space between attachment; and filename
Hope this helps.
I had this same problem. However appearing only very rarely. Cause was similar but not quite the same.
Incorrect
header("Content-Disposition: attachment; filename=$filename");
Correct
header("Content-Disposition: attachment; filename=\"$filename\"");
$filename sometimes contained spaces resulting in mentionec Chrome error.
I also faced the same problem. While downloading a file having comma in its name it was saying "duplicate headers received" and it is only in chrome. In Firefox it was OK. After that I just changed my code from
header("Content-Disposition: attachment; filename=$myfilename"); to
header("Content-Disposition: attachment; filename=\"$myfilename\""); and it worked fine. Hope it will work for you.
Try this may help you,
header('Content-Disposition: attachment; filename="'.$file_name.'"');
instead of
header('Content-Disposition: attachment; filename='.$file_name);