I have a script which uploads files into an online directory and stores the file details in a database. The files when stored are renamed to the id of the entry in the database. Whenever a user requests a download, a simple SQL statement retrieves the file details from the database, the contents of the file are read from the database, and the file is prompted for download. The following is my code:
$one_file = $FILE_OBJECT->get($_GET['id']); // this is an object which just grabs the file details from the database
header("Content-type: ".$one_file['type']); // add here more headers for diff. extensions
header("Content-Disposition: attachment; filename=\"".$one_file["filename"]."\""); // use 'attachment' to force a download
header("Content-type: application/octet-stream");
header("Content-Disposition: filename=\"".$one_file["filename"]."\"");
readfile(_config('files_path').$_GET['id']);// reading the actual raw file stored in my online directory
Problem is that Im testing using a word document and its uploading perfectly - I've even checked the raw file being uploaded by manually changing its extension and it's uploading perfectly. The problem is that when it's downloaded using the code above, the Word file seems corrupted or something, because when I try to open it, it's all mumbled and jumbled. What's happening? I've used this snippet on a few other sites I've worked on, and they work perfectly fine... Help please!
By default PHP's header function will replace previous headers with the same name, so your first two headers are being overwritten by the second two. Delete the second two and see if that works.
See if this helps:
Webkit and Excel file(PHPexcel)
I was having the same problem: every time I downloaded a file, it was supposedly "corrupt". Turns out I had made a stupid directory path mistake, but the php error was being written into the downloaded file. Which, of course, made it "corrupt".
Actually I solved by reading Ian Wetherbee's comment about testing with a plain text file. Thanks Ian!
Related
I'm outputting a PDF via PHP with the following code. $file is an object that contains data pertaining to the file being displayed.
header('Content-type: application/pdf');
header('Content-disposition: inline; filename="'.$file->name.'"');
#readfile($file->ServerPath());
My issue is that when I go to download the file in Chrome it will occasionally try to save the page instead of the PDF.
For example, say the URL that is displaying the file is mywebsite.com/file?file_id=1234. Most of the time it will try to save the file correctly as "file_name.pdf". However, sometimes chrome will try to save the file as "file" with no extension. This seems to happen randomly.
If it makes any difference the page displaying the file is being opened in a new tab. The issue happens regardless of whether I redirect via PHP or Javascript.
I really need to resolve this issue, as these PDFs will be accessible by users.
Thanks in advance.
I recently had a asked a question very similar to this one, however after evaluating that I did not explain it in the best way I have come back once again explaining it in a greater manner.
So, I am creating a system that will gather data from a MySQL database and use a unique id to download a file, however depending on the value of a column within that database called type, this file could be anything from a png file to an xml file. What I am currently doing is trying to download these files WITHOUT any extension.
As an example to maybe make this easier to understand, a file named image.png would be converted to just image and then downloaded.
With this you could rename the file to image.png again on the local machine and view the image.
This may seem very inefficient to most reading this but for my current situation it's all that will work.
How could I remove a files extension and then download it? (in php)
Thank you in advance.
Just use headers to specify response type.
$filepath = '/wherever/the/file/is.png';
$filename = 'new-cool-name';
header('Content-Type: whatever/content-type-is');
header("Content-disposition: attachment;filename=$filename");
readfile($filepath);
This basically sends a response with specified content-type as an attachment and the body of the attachment contains the file contents. If you never sure what's the content type is, then just use application/octet-stream
Usually when you set out to push a file for downloading from a serverside script, you do so by utilizing http headers like https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Disposition
The filename of the downloadable file is specified in that header
Okay so to remove an extention from a file you could do is
$withoutExtion = preg_replace('/\\.[^.\\s]{3,4}$/', '', $youfilename);
...followed by your file download code
First post. I'm working on a project for a client where they have pdf files uploaded to a file structure (LAMP Stack) but the files have no extensions on them. Under the assumption that those files have to be PDF how would I get the browsers to understand that, and open them accordingly? Obviously with adding the file extensions this would suddenly work but I can't change the way their system works, it would result in too many changes and they are on a tight deadline. As for saving a temporary copy somewhere, I could do that, but I was hoping for a better solution. Is there a way to suggest to the browsers that they open a file a certain way?
Any thoughts guys/gals?
You just set the application type and file name in the headers, like so:
// This points to the file in question, note that it doesn't
// care whether it has an extension on the name or not.
$filePathOnDisk = '/path/to/your/pdffile';
// You can make this whatever you like, it doesn't have to
// be the same as the file name on the disk! This is the name of the file your end
// user will see when they are asked if they want to save. open, etc in the browser.
$fileName = 'file.pdf';
$data = file_get_contents($filePathOnDisk);
header("Content-type: application/pdf");
header("Content-disposition: attachment;filename=$fileName");
echo $data;
See PHP: stream remote pdf to client browser and Proper MIME media type for PDF files for reference as well.
Tested
You can use the following which will prompt the user to save the (PDF) file on their computer.
Notice the different file names.
One is the file that will be uploaded/prompted to the user download_example.pdf, while the other is the file without an extension as set in readfile('example');
<?php
header('Content-type: application/pdf');
header('Content-Disposition: attachment; filename="download_example.pdf"');
readfile('example');
?>
I am new to PHP. I have a software downloads website. What I want is to
automatically add "-mysite.com" with every download filename. So that the actual
filename remain the same i.e "somesoftware.exe" but whenever someone download it, it should
be automatically renamed and downloaded with the filename "somesoftware-
mysitename.com.exe" to their computer. Here is the code for download link div on my site.
<!--===========================Download Div===============================-->
<div id="downlink-container">
<a href="http://www.mysitename.com/downloads/jetaudio16.0.0.435-mysitename.com.exe" id="downloadlink" style="visibility:visible">
Download Jet Audio
</a>
</div>
<!--===========================Download Div====================================-->
Can I use PHP to automatically add "-mysitename.com" with the downloaded file name
"somesoftware.exe" so that the actual filename on server folder remain the same(i.e.
somesoftware.exe) but whenever someone download it, it automatically become "somesoftware-
mysitename.com.exe". I tried using PHP variables for this but I can't get it done. Please
Help!
You set the following header:
header('Content-Disposition: attachment; filename="downloaded.pdf"');
Where downloaded.pdf is your filename. Its just a matter of getting the extention and adding "- thenoblesite.com" to the original name.
Once user starts downloading a file, it's over - you have no control over it, no PHP, no anything. So the idea is to either rename the source file (which you don't want) or to actually stream the file using a different name. See it here.
This is probably a very simple and stupid question to ask, but I have no idea how I would go about doing this.
I am building some file hosting functionality for a client site in PHP. I have a central repository of files in one directory. This is because the client wants to maintain one copy of each file (based on the "hash" of the file) if multiple people upload the same file. Files are renamed before dumping them into this directory (datetime + some code) to avoid filename clashes. The original name(s) of the file are held on the database.
Where the problem is, is that I have no idea how I would go about renaming the file to the original filename when a user requests to download it? I could create a temporary copy of it in another directory, but I think this is going to get messy. I am hoping there is a better way. I have seen another post with
Response.AppendHeader("content-disposition", "attachment; filename='MyFile.jpg'");
but that is in ASP. Could anyone point me in the right direction?
Many thanks
Ted
in PHP it is similar:
see the header function
From the example on that page:
<?php
// We'll be outputting a PDF
header('Content-type: application/pdf');
// It will be called downloaded.pdf
header('Content-Disposition: attachment; filename="downloaded.pdf"');
// The PDF source is in original.pdf
readfile('original.pdf');
?>
I don't understand about ASP but maybe this article could make you understand about it.
Download file with ASP
and some reference about it ASP Response Object