Comments on: How To Force File Download With PHP http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/ Slightly Advanced Computer Stuff (and some magic) Fri, 19 Mar 2010 03:52:48 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Joern http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33952 Joern Wed, 10 Mar 2010 10:26:27 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33952 Thanks for the fast reply. No we are talking about files bigger than 10MB. Also when I'm using the line "@ob_end_clean();" FF is telling me that he can't open the file on the server. If I comment it out its workin as explained. Here two headers probably they help Working one: HTTP/1.1 200 OK Date: Wed, 10 Mar 2010 10:19:33 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 X-Powered-By: PHP/5.2.9 Content-Disposition: attachment; filename="v_2010-03-09_001.wma" Content-Transfer-Encoding: binary Accept-Ranges: bytes Cache-Control: private Pragma: private Expires: Mon, 26 Jul 1997 05:00:00 GMT Content-Encoding: gzip Vary: Accept-Encoding Content-Length: 3326385 Connection: close Content-Type: audio/x-ms-wma Not working: HTTP/1.1 200 OK Date: Wed, 10 Mar 2010 10:22:03 GMT Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 X-Powered-By: PHP/5.2.9 Content-Disposition: attachment; filename="v_2010-03-09_002.wma" Content-Transfer-Encoding: binary Accept-Ranges: bytes Cache-Control: private Pragma: private Expires: Mon, 26 Jul 1997 05:00:00 GMT Content-Length: 0 Connection: close Content-Type: audio/x-ms-wma Thanks for the fast reply.
No we are talking about files bigger than 10MB.
Also when I’m using the line “@ob_end_clean();” FF is telling me that he can’t open the file on the server. If I comment it out its workin as explained.
Here two headers probably they help

Working one:

HTTP/1.1 200 OK
Date: Wed, 10 Mar 2010 10:19:33 GMT
Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
X-Powered-By: PHP/5.2.9
Content-Disposition: attachment; filename=”v_2010-03-09_001.wma”
Content-Transfer-Encoding: binary
Accept-Ranges: bytes
Cache-Control: private
Pragma: private
Expires: Mon, 26 Jul 1997 05:00:00 GMT
Content-Encoding: gzip
Vary: Accept-Encoding
Content-Length: 3326385
Connection: close
Content-Type: audio/x-ms-wma

Not working:

HTTP/1.1 200 OK
Date: Wed, 10 Mar 2010 10:22:03 GMT
Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635
X-Powered-By: PHP/5.2.9
Content-Disposition: attachment; filename=”v_2010-03-09_002.wma”
Content-Transfer-Encoding: binary
Accept-Ranges: bytes
Cache-Control: private
Pragma: private
Expires: Mon, 26 Jul 1997 05:00:00 GMT
Content-Length: 0
Connection: close
Content-Type: audio/x-ms-wma

]]> By: White Shadow http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33951 White Shadow Wed, 10 Mar 2010 10:04:22 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33951 How "large" are we talking about? If it's over 4 GB, it <em>might</em> cause an integer overflow. How “large” are we talking about? If it’s over 4 GB, it might cause an integer overflow.

]]> By: Joern http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33950 Joern Wed, 10 Mar 2010 09:27:26 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33950 Hi Thanks for the script! It's working fine as long as I'm using it for small files, but as soon as I'm trying to use it with larger files the file size in the header turns to zero and so the downloaded file has a size of zero.Anyhow when I link the file normaly and right click the link I can download the file. Do you have any suggestion why this happens? Hi
Thanks for the script!
It’s working fine as long as I’m using it for small files, but as soon as I’m trying to use it with larger files the file size in the header turns to zero and so the downloaded file has a size of zero.Anyhow when I link the file normaly and right click the link I can download the file. Do you have any suggestion why this happens?

]]> By: mark http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33008 mark Thu, 17 Dec 2009 17:59:59 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33008 hehe, no time to learn php, only to make it work asap :) i'm going to ask the folks in the forums, thanks for your quick reply :) hehe, no time to learn php, only to make it work asap :)
i’m going to ask the folks in the forums, thanks for your quick reply :)

]]> By: White Shadow http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33007 White Shadow Thu, 17 Dec 2009 17:51:15 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33007 <em>Oh for the mind-tearing dread of Cthulhu...</em> I'd really recommend you to learn a bit more about PHP programming before attempting this. Alternatively, you could perhaps ask the same question on one of the programming forums. Oh for the mind-tearing dread of Cthulhu…

I’d really recommend you to learn a bit more about PHP programming before attempting this. Alternatively, you could perhaps ask the same question on one of the programming forums.

]]> By: mark http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-33005 mark Thu, 17 Dec 2009 17:40:53 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-33005 Hi, i'm new to php programming, and i could use a little help with implementing this. I see that there are no open and closing tags around this script? I also understand that i need to save this script as a .php file and call it something like filedownload.php? I need this file to handle image downloads for me and i 'm not really sure how to go about it? I have a WordPress website with a lot of images, in the images folder, and the images are stored in different folders, for different categories. Can i just put this script in my images folder and call it from html for each image? This is very tricky i guess? Hi, i’m new to php programming, and i could use a little help with implementing this. I see that there are no open and closing tags around this script? I also understand that i need to save this script as a .php file and call it something like filedownload.php? I need this file to handle image downloads for me and i ‘m not really sure how to go about it? I have a WordPress website with a lot of images, in the images folder, and the images are stored in different folders, for different categories. Can i just put this script in my images folder and call it from html for each image? This is very tricky i guess?

]]> By: White Shadow http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-32775 White Shadow Sat, 05 Dec 2009 21:21:33 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-32775 As I said, just add some parameters to the URL. If your script is download.php, change the URL to download.php?rand=123 or whatever. You could also investigate the <a href="http://surf11.com/entry/98/prevent-caching-with-http-headers" rel="nofollow">Expires & Cache-Control HTTP headers</a>. Also, see section 14.9 of <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html" rel="nofollow">this RFC</a>. As I said, just add some parameters to the URL. If your script is download.php, change the URL to download.php?rand=123 or whatever. You could also investigate the Expires & Cache-Control HTTP headers. Also, see section 14.9 of this RFC.

]]> By: VoodooJai http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-32774 VoodooJai Sat, 05 Dec 2009 21:09:18 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-32774 Hi I think your right in that caching is occuring, even if I change the download filename and save the php file it still gets the previous file. To get a different file I have to rename the download script file and it will get the new file, but then back to the same old problem. Frustrated VoodooJai Hi
I think your right in that caching is occuring, even if I change the download filename and save the php file it still gets the previous file.
To get a different file I have to rename the download script file and it will get the new file, but then back to the same old problem.

Frustrated
VoodooJai

]]> By: White Shadow http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-32766 White Shadow Sat, 05 Dec 2009 12:00:05 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-32766 It's probably Firefox caching the file. You could try varying the download URL by attaching some superfluous parameters, like "&rand=64564" or similar. It’s probably Firefox caching the file. You could try varying the download URL by attaching some superfluous parameters, like “&rand=64564″ or similar.

]]> By: VoodooJai http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/comment-page-3/#comment-32753 VoodooJai Fri, 04 Dec 2009 23:09:30 +0000 http://w-shadow.com/blog/2007/08/12/how-to-force-file-download-with-php/#comment-32753 Hi again I have tested this script locally using apache & firefox and when I change the file names to download I still get the previous file not the new one. When I upload the files and use remotely I still have this problem with FF but all seems fine with IE8. Any solutions ! VoodooJai Hi again
I have tested this script locally using apache & firefox and when I change the file names to download I still get the previous file not the new one.
When I upload the files and use remotely I still have this problem with FF but all seems fine with IE8.

Any solutions !

VoodooJai

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