I'm trying to get a link to download files without redirecting, or using another file to download large zip files.
It works great for files under ~100mb, but anything larger and it's sent to an error page in chrome that says: Error code: ERR_INVALID_RESPONSE.
The $file and $path are put into a form with jQuery, and then $('form').submit(); is called.
function downloadFile($file, $path){
set_time_limit(0);
$fullPath = $path . $file;
if ($fd = fopen ($fullPath, "r")) {
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);
switch ($ext) {
case "pdf":
header("Content-type: application/pdf"); // add here more headers for diff. extensions
header("Content-Disposition: attachment; filename=\"".$path_parts["basename"]."\""); // use 'attachment' to force a download
break;
default;
header("Content-type: application/octet-stream");
header("Content-Disposition: filename=\"".$path_parts["basename"]."\"");
}
header("Content-length: $fsize");
header("Cache-control: private"); //use this to open files directly
while(!feof($fd)) {
$buffer = fread($fd, 2048);
echo $buffer;
}
}
fclose ($fd);
exit;
}
Any ideas why it fails on larger files?
Update:
When I use the following code, it downloads the file, but the finished file doesn't open as it's corrupted for some reason:
set_time_limit(0);
ini_set('memory_limit', '1024M');
// http headers for downloads
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$filename."\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".$file_size);
ob_end_flush();
#readfile($fileinfo['path']);
When I use this code, it only downloads the first 49.7kb then says it's finished, I even tried ob_flush() and flush() together:
// http headers for downloads
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$filename."\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($fileinfo['path']));
if ($fd = fopen ($fileinfo['path'], "r")) {
set_time_limit(0);
ini_set('memory_limit', '1024M');
while(!feof($fd)) {
echo fread($fd, 4096);
flush();
}
}
The only thing I do different in my downloader is Content-Transfer-Encoding: chunked. Also take the flush() out of the loop and make sure you do ob_clean(); flush(); before and ob_end_flush(); after sending the data.
Related
<body>
<?php
$zip = new ZipArchive;
if ($zip->open(getcwd() .'/read.zip', ZipArchive::CREATE) === TRUE) {
$zip->addFile(getcwd() . '/read.txt','/newname.txt');
$zip->close();
$file = getcwd() . '/read.zip';
// http headers for zip downloads
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"read.zip\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($file));
readfile($file);
echo 'ok';
} else {
echo 'failed';
}
?>
</body>
I have following code and want to download zip file automatically that is being produced by this code when we run this page.
u need to add header for the client about file downloading. just see the manual example: http://php.net/manual/en/function.header.php#example-5315
<?php
$file = getcwd() . '/read.zip';
// http headers for zip downloads
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"read.zip\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($file));
ob_end_flush();
#readfile($file);
I am trying to download 700mb file using the following code
header("Pragma: public", true);
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename=".basename($File));
header("Content-Type: application/download");
header("Content-Description: File Transfer");
header("Content-Length: " . filesize('movies/'.$File));
flush();
$fp = fopen('movies/'.$File, "r");
while (!feof($fp))
{
echo fread($fp, 65536);
flush();
}
fclose($fp);
but this is taking too long to start downloading file, it takes about 2-3 minutes to start the download. This code is just for mkv file, other video files are working perfect with location header.
File is not downloading without any of the content-type header missing
I want to start downloading fast
I have the following code in an attempt to have it so a specific file on the server is downloaded:
$file = 'upload/Order.txt';
header("Pragma: public", true);
header("Expires: 0"); // set expiration time
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment; filename="basename.$file);
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($file));
All that happens is it causes the browser to download a file, in my case "Order.txt", but its blank, it is just creating this file out of no where. It doesn't do anything with the "upload/" path portion of $file.
Thanks for any help, I find headers really confusing, why I can't just have "download ($file)" is beyond me.
Edit: I'll struggle over a problem for days, finally decide to ask here then immediately after fix it my self.
I changed the location of the file to be in the same as the PHP script, I'd still like to know how to make it work with them being separate however. I also added:
readfile($file);
If I alter with of these 2 changes it doesn't work.
Also slim lined it, new code:
$file = 'Order.txt';
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$file");
header("Content-Type: application/zip");
header("Content-Transfer-Encoding: binary");
readfile($file);
you should print content of file to stdout after headers:
$file = 'upload/Order.txt';
header("Pragma: public", true);
header("Expires: 0"); // set expiration time
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment; filename=".basename($file));
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($file));
$handle = fopen($file, "r");
$contents = fread($handle, filesize($file));
fclose($handle);
echo $contents;
Try change this line:
header("Content-Disposition: attachment; filename='".basename($file)."';");
So what I am trying to do is take 2 strings and create 2 files. Then create a zip out of these files and let a user download them.
Here is what I have:
$string1 = 'Some data some data some data';
$string2 = 'Some data some data some data';
$zip = new ZipArchive();
$filename = "test.zip";
if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
exit("cannot open <$filename>\n");
}
$zip->addFromString("string1.txt", $string1);
$zip->addFromString("string2.txt", $string2);
$zip->close();
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$filename."\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize('test.zip'));
So far no luck. Any help is appreciated.
You missed the most important part - output the file! :)
Add:
readfile('test.zip');
to the end of the php file.
Also the calculation of the HTTP content-length header is wrong:
header("Content-Length: ".filesize($zip));
This will give you always 0 ( or false) as filesize expects a filename as its argument.
Change the line to:
header("Content-Length: ".filesize('test.zip'));
After doing both of this the zip will successfully download and contains the two files. For completenes, here comes the full working example:
$string1 = 'Some data some data some data';
$string2 = 'Some data some data some data';
$zip = new ZipArchive();
$filename = "test.zip";
if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
exit("cannot open <$filename>\n");
}
$zip->addFromString("string1.txt", $string1);
$zip->addFromString("string2.txt", $string1);
$zip->close();
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"".$filename."\"");
header("Content-Transfer-Encoding: binary");
// make sure the file size isn't cached
clearstatcache();
header("Content-Length: ".filesize('test.zip'));
// output the file
readfile('test.zip');
You have a PHP error (you probably dont have error reporting turned on or high enough error level).
the filesize() function takes a string not an object. filesize($filename) will work.
to turn on error reporting do:
error_reporting(E_ALL|E_STRICT);
ini_set('display_errors', 1);
alternatively do this in php.ini
After all those header() calls, I think you want:
readfile($filename);
am integrating force download using php. when i download the flv files and open in video players its shows error.
$Filename = '/* file name */';
header('Content-Description: File Transfer');
header("Content-type: video/flv");
header("Cache-Control: no-cache");
header("Content-Transfer-Encoding: binary");
header('Content-Disposition: attachment; filename=test.flv' );
header("Pragma: no-cache");
header('Content-length: '.filesize($Filename));
$hFPi = fopen ("$Filename", "rb");
while (!feof($hFPi))
{
$sBuf = fread ($hFPi, filesize($Filename) );
echo $sBuf;
}
fclose ($hFPi);
Please help..
$Filename = '/* file name */';
$path = "../../upload/";
$file = $path.$filename;
savedata1();
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filename");
header("Content-Type: application/flv");
header("Content-Transfer-Encoding: binary");
readfile($file);
this will help u. Try it in ur code and u will find ur answer...
This code working great to download mp4, flv, mpeg file from my end.
Here:
$file_name = The Downloaded video file name,
$file_path = Base Path of the original file in the server.
header('Pragma: public'); // required
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$file_name");
header("Content-Type: video/mpeg");
header("Content-Transfer-Encoding: binary");
header('Cache-Control: must-revalidate, post-check=0, pre-check=0', false);
header('Cache-Control: private', false); // required for certain browsers
ob_clean();
flush();
readfile($file_path);
exit;
Try
$Filename = 'test.flv';
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-type: video/flv");
header("Content-Disposition: attachment; filename=".basename($filename).";" );
header("Content-Transfer-Encoding: binary");
readfile("$Filename ");
This is what I do to force a download of a file (for me it's ZIP but it should work for any file type though). Keep in mind you'll have to tweak it as I store my db information differently than you probably do.
header("Content Description: File Transfer");
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must revalidate");
header("Content-Type: application/zip");
header("Content-Disposition: attachment; filename=".basename(".".$filepath)."");
header("Content-Length: " . filesize(".".$filepath));
header("Content-Transfer-Encoding: binary");
ob_clean();
flush();
readfile(".".$filepath);