[RESOLVED] Help in downloading script

hammadtariq

hello,
is there any downloading function available?
Infact most music sites here in pakistan using the technique that just right click on the song and then click save target as..

I want that a user clicks on "download now" link. And the file after incrementing in the download statistic field in a mysql table ... automatically starts downloading...

any help?

rajug

Try this out:

        $yorufile = 'yourfile.extenction';
	header('Content-type: application/pdf');
	header('Content-Disposition: attachment; filename=$yorufile);

And look for the php manual as header for more details at www.php.net.

hammadtariq

umm is this attaching the file with the my current page? or will just throw the file to the user..when user accesses the page which includes this header?

rajug

What do you mean? Just pick up the file name and give the path for the file and you can use this header with the particular application type and let the user to save the file.

Did you try this?

hammadtariq

yeah i have tried...i m wondering how this works?

let me be more specific...
I have a button on a page whose name is download and value is also download. The page is dynamically created. The script knows which file is it now. I want when user clicks on that download button...it should send file to the user for downloading, without any further page being involved...how will it happen?

bradgrafelman

Typically, what you do is link to a PHP script like so: download.php?file=myfile.mp3

Then, you output the file using PHP:

$get = basename($_GET['file']);
$path = 'downloads/'; // path to dir where files are located
header ('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header ('Content-Type: application/octet-stream');
header ('Content-Length: ' . filesize($path.$get));
header ("Content-Disposition: attachment; filename=\"$get\"");

$fp = @fopen($path.$get,'rb');
while(!feof($fp)) {
	echo fgets($fp, 4096);
}
fclose($fp);

hammadtariq

it is giving the following error... and the line is

header ('Content-Length: ' . filesize($path.$get));

Warning: filesize() [function.filesize]: stat failed for ./music/dam/notre/a45262fe9647a9153742d1811e37e9bd459e7478769a2Aadat_sur.mp3 in c:\Inetpub\wwwroot\mysite\download.php on line 21

when i disabled this header, it works fine but dont tell the size!

bradgrafelman

Not really sure why it's failing if the same path works in the fopen() call...

You've got me stumped.

hammadtariq

no dont be stumped!
it also not downloading file...I have checked just now...it keeps on downloading..
means the file is just of 398kb and when tried to download it from local system it went on to 168Mb when i cancel it.

what can be the problem?

Houdini

You are running this on a local PC using IIS right? Error shown below

c:\Inetpub\wwwroot\mysite\download.php on line 21

hammadtariq

yah rite and the same happened on server where Apache is running!

bradgrafelman

Check the file path. Is "c:\Inetpub\wwwroot\mysite\music\dam\notre\a45262fe9647a9153742d1811e37e9bd459e7478769a2Aadat_sur.mp3" the correct path to the file?

Check permissions on the file itself. Does the "IUSR_ComputerName" account have at least all of the "Read" permissions? (I would give this account full control over the folder and see if that makes a difference).

Mythotical

Brad: Would this code work no matter how I implement it?

 $get = basename($_GET['file']);
$path = 'downloads/'; // path to dir where files are located
header ('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header ('Content-Type: application/octet-stream');
header ('Content-Length: ' . filesize($path.$get));
header ("Content-Disposition: attachment; filename=\"$get\"");

$fp = @fopen($path.$get,'rb');
while(!feof($fp)) {
    echo fgets($fp, 4096);
}
fclose($fp);

bradgrafelman

Provided that the following conditions are met, yes, you can use that snippet:

a) Nothing is outputted before or after that snippet on the entire page (this includes blank lines or even a single space before/after the <?php ?> tags!).
b) You correctly set the $path variable to the directory of files.
c) You place the files to be downloaded in their own directory - ANY file in that dir can be downloaded, so don't place any PHP scripts in there that you don't want to divulge the source code to anyone on the internet.
d) If you're not worried too much about memory consumption, you can increase the number of bytes the [man]fgets/man command reads at a time.

Mythotical

That is easy enough, so in that directory, no one can download stuff without using the snippet above?

bradgrafelman

Well, guess I sorta forgot something :o . You'd also have to add a .htaccess file in the downloads directory that looks like so:

Order allow,deny
Deny from all

Mythotical

Perfect, then thats all I need. I was gonna try it through the database but then realized doing that would be harder than just creating something easy especially since the downloads will be my scripts.

hammadtariq

All cleared, file is downloading fine but still has following size error:

Warning: filesize() [function.filesize]: stat failed for http://localhost/mysite/tones/True%20Tones/Miscellaneous/5f33b628f1306abc0e3c198fef410df5459e7398ccca4kasam_zamane_ki_(katimati.com).mp3 in c:\Inetpub\wwwroot\mysite\download.php on line 52

what to do with it?

bradgrafelman

Use the local filepath instead of an HTTP URI.

hammadtariq

well I have tried to do all of that and script is working fine who is on php 5.2 pretty fine except the filesize thing. Now, I have put this script on another of my site and its giving "page cannot be displayed error". The case is that i m just checking my this new script here. Sometimes it gives 500 internal server error in title bar and some times simple page cannot be refreshed. What to do now?

The php on this server is 4.4.1

does this make any sense?