When
header('Content-disposition: attachment; filename=1330554893-COVER.jpg');
header('Content-type: jpeg');
readfile('watermarked/1330554893-COVER.jpg');
Is run in a file for example "testdownload.php" It downloads the image
"watermarked/1330554893-COVER.jpg"
and names it
"1330554893-COVER.jpg"
But when I try make the code dynamic to download different files.
header("Content-disposition: attachment; filename={$newFileName}");
header("Content-type: jpeg");
readfile("{$findFile}");
where
$newFileName = "1330554893-COVER.jpg" and $findFile = "watermarked/1330554893-COVER.jpg"
It downloads an image "1330554893-COVER.jpg" but it cannot be opened and I get an error "Windows Photo Viewer can't open this picture because eaither Photo Viewer doesn't support this file format"
Thanks for helping :)
Allrite then, don't use readfile(), try echo file_get_contents after the headers!
Related
Is it possible to let your user download a file with a different name?
For example, there is a file called "4324ffsd34.jpg". I want people to download it via download.php, with a different name (like "filetodownload.jpg"), without renaming the original file.
Sure, use a Content-disposition header
header('Content-Disposition: attachment; filename="filetodownload.jpg"');
if you wish to provide a default filename, but not automatic download, this seems to work.
header('Content-Disposition: filename="filetodownload.jpg"');
Sure you can, just try something like this:
$original_filename = '4324ffsd34.jpg';
$new_filename = 'my_new_filename_is_detailled.jpg';
// headers to send your file
header("Content-Type: application/jpeg");
header("Content-Length: " . filesize($original_filename));
header('Content-Disposition: attachment; filename="' . $new_filename . '"');
// upload the file to the user and quit
readfile($original_filename);
exit;
Hope it helps!
There is also another way if you are using html5
Download
Cheers :3
Nothing wrong with the above but I had to add:
ob_clean();
flush();
before readfile
otherwise I can not open the download jpg/png file
Download
I'm trying to force download a pdf file that I'm generating. I don't need the pdf file to be actually saved on the server.
So when I generate my pdf file, I get the file content. I then encode it with base64. Now the problem is that I need to force download it. I've looked all over the web, but I haven't found any search results that tells me how to do this without the file actually being placed on the site.
I've tried the following code:
header("Content-type: application/pdf");
header("Content-disposition: attachment; filename=\"invoice.pdf\"");
header("Content-Length: ".filesize($pdffile));
readfile(base64_decode($pdffile));
But, it's giving me a corrupt pdf file, (1 kb). The actual file should be around 50kb.
Any ideas, as to what I can try?
readfile trying to output content from file, but you have only data string. Try this instead:
header("Content-type: application/pdf");
header("Content-disposition: attachment; filename=\"invoice.pdf\"");
echo base64_decode($pdffile);
I also suggest rename $pdffile to $pdfcontent for even better clarification.
i want to download image returned by this url using a link like Download and on click of this link download box should appear so user can save image to his/her system. here is the url that return image
http://chart.apis.google.com/chart?chs=300x300&cht=qr&chld=L|0&chl=http%253A%252F%252Fnetcane.com%252Fprojects%252Fyourl%252F3
i don't want to save the image to server is it possible ?
Original Question
You can stream or proxy the file to your users by setting up a simple PHP download script on your server. When user hits the download.php script below it will set the correct headers so that their browsers asks them to save a download. It will then stream the chart image from google to the users browser.
In your HTML:
Download
In download.php:
header('Content-Type: image/png');
header('Content-Disposition: attachment; filename="chart.png"');
$image = file_get_contents('http://chart.apis.google.com/chart?chs=300x300&cht=qr&chld=L|0&chl=http%253A%252F%252Fnetcane.com%252Fprojects%252Fyourl%252F3');
header('Content-Length: ' . strlen($image));
echo $image;
Passing in dynamically generated chart API URLs
In your HTML:
<?php
$url = 'http://chart.apis.google.com/chart?my-generated-chart-api-url';
Download
In download.php:
$url = '';
if(array_key_exists('url', $_GET)
and filter_var($_GET['url'], FILTER_VALIDATE_URL)) {
$url = $_GET['url'];
}
header('Content-Type: image/png');
header('Content-Disposition: attachment; filename="chart.png"');
$image = file_get_contents($url);
header('Content-Length: ' . strlen($image));
echo $image;
No, not really. Since the image is generated at chart.apis.google.com, and you don't have control over that server, you can't make it send the Content-Disposition header with that image; therefore, browsers will display that image.
What you technically could do (but I'm not sure if Google's ToS allows it, better check), is to link to your server, which will proxy the download and add the Content-Disposition: attachment header.
I believe you will not be able to do that.
The closest thing would be to dynamically get the image data using PHP and then serving it with the header Content-Disposition: attachment; filename=qr.png
<?php
$img_data = file_get_contents("http://chart.apis.google.com/chart?chs=300x300&cht=qr&chld=L|0&chl=http%253A%252F%252Fnetcane.com%252Fprojects%252Fyourl%252F3");
header("Content-Type: image/png");
header("Content-Length: " . strlen($img_data));
header("Content-Disposition: attachment; filename=qr.png");
print $img_data;
?>
Code is untested, but I think you get the gist of it.
Hope its what you're looking for.
In my program I want to add a download option to download the currently straming video. I tried this code:
$psp = "Tom_20_amp__20Jerry_20race-1.flv";
header("Content-type:application/octet-stream");
header("Content-Disposition:attachment;filename=$psp");
But I get this error:
"C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\Tom_20_amp__20Jerry_20race-1-5.flv" is not a valid FLV file.
the video streaming properly. please guide me
Change you're header from :
header("Content-type:application/octet-stream");
To :
header("Content-type: video/flv");
Then you can do :
header("Content-Disposition:attachment;filename=\"$psp\"");
//allways a good idea to let the browser know how much data to expect
header("Content-length: " . filesize($psp) . "\n\n");
echo file_get_contents($psp); //$psp should contain the full path to the video
If you are looking to allow files to be downloaded instead of streamed then something like this should work. You will obviously need to change the paths.
// We'll be outputting a PDF
header('Content-type: application/pdf');
// It will be called downloaded.pdf
header('Content-Disposition: attachment; filename="download.pdf"');
// The PDF source is in original.pdf
readfile('original.pdf');
EDIT
In your case it will be something like this.
// We'll be outputting a video
header('Content-type: video/flv');
// It will be called video.flv
header('Content-Disposition: attachment; filename="video.flv"');
// The PDF source is in original.flv
readfile('original.flv');
Is it possible to let your user download a file with a different name?
For example, there is a file called "4324ffsd34.jpg". I want people to download it via download.php, with a different name (like "filetodownload.jpg"), without renaming the original file.
Sure, use a Content-disposition header
header('Content-Disposition: attachment; filename="filetodownload.jpg"');
if you wish to provide a default filename, but not automatic download, this seems to work.
header('Content-Disposition: filename="filetodownload.jpg"');
Sure you can, just try something like this:
$original_filename = '4324ffsd34.jpg';
$new_filename = 'my_new_filename_is_detailled.jpg';
// headers to send your file
header("Content-Type: application/jpeg");
header("Content-Length: " . filesize($original_filename));
header('Content-Disposition: attachment; filename="' . $new_filename . '"');
// upload the file to the user and quit
readfile($original_filename);
exit;
Hope it helps!
There is also another way if you are using html5
Download
Cheers :3
Nothing wrong with the above but I had to add:
ob_clean();
flush();
before readfile
otherwise I can not open the download jpg/png file
Download