need code if this is possible

chikulanikader · May 30 '09, 02:40 AM (#1)

What I want to do is add a code that makes a picture downloadable. (hope that makes sense)

I don't want the picture to appear like what happens when you click on a thumbnail and a larger picture appears. The one I have is 3 mgs in size and is for club members who want it for printing purposes.

Is there some kind of code where if I click on the words "corvette sunset" a dialog box appears and asks if you want to download the file.

Hope I explained this well enough

Thanks for any help

**mlseim** · May 30 '09, 11:49 AM (#2)

This has a couple of parts to it.

1) You mention "club members".
Does that mean they have logged into your website?
I ask this because you may have something that will check to
see if the site visitor is logged in ... other visitors can't download the image.

2) The image could be stored in a secret directory, and you
serve the image (or photo) using PHP. The site user would be
able to see the photo on their browser (and copy it), but they
won't see where the photo originated from.

This is a simple example (I found this on the internet).
It does open a dialog box (open or save?), but the user
does not know where the image came from.

PHP Code:


			
<?php    

if($_GET){

    if($_GET['file']) {

        $filename = $_GET['file'];

        $download_path = "files/";

    }



    if(eregi("\.\.", $filename)) die("I'm sorry, you may not download that file.");

    $file = str_replace("..", "", $filename);

    if(eregi("\.ht.+", $filename)) die("I'm sorry, you may not download that file.");

    $file = "$download_path$file";

    if(!file_exists($file)) die("I'm sorry, the file doesn't seem to exist.");

    $type = filetype($file);

    $today = date("F j, Y, g:i a");

    $time = time();



    header("Content-type: $type");

    header("Content-Disposition: attachment;filename=$filename");

    header("Content-Transfer-Encoding: binary");

    header("Cache-Control: ");

    header("Pragma: ");

    set_time_limit(0);

    readfile($file);

}

?>

Danny[MLWA] · June 10 '09, 04:05 AM (#3)

The best way to do it:

Code:

define('FILE_PATH', '/path/to/your/file/');
define('FILE_NAME', 'some_image.jpg');
header('Content-type: application/file');
header('Content-disposition: attachment; filename="'. FILE_NAME .'"');
readfile(FILE_PATH . FILE_NAME);

Dorky · June 10 '09, 12:38 PM (#4)

how would you implement that without getting a header already sent error? is this to be the start of a new .php or on the same page.

Danny[MLWA] · June 10 '09, 01:36 PM (#5)

Quote:

Originally Posted by Dorky

how would you implement that without getting a header already sent error? is this to be the start of a new .php or on the same page.

Yes, quite frankly that has to be the first and only thing in the document...

If you want to make the file more universal... Say if you have just document.php to display some content, but display something else by appending ?file=filename to document.php without creating a new php file you would do something like this:

Code:

<?php
if(isset($_REQUEST['file']))
{
define('FILE_PATH', '/path/to/your/file/');
define('FILE_NAME', 'some_image.jpg');
header('Content-type: application/file');
header('Content-disposition: attachment; filename="'. $_REQUEST['file'] .'"');
readfile(FILE_PATH . $_REQUEST['file']);
} else {

?>
<html>
<head>
<title>Somepage</title>
</head>
<body>
Some body stuff here.
</body>
</html>
<?php
}
?>

Dorky · June 10 '09, 03:11 PM (#6)

very cool

nitin · July 3 '09, 02:14 AM (#7)

for this you can use code behind.