downloadind a picture

kusarigama · Aug 6, 2002

Hi all,

Is it possible via PHP to create a link,where you are able to download a picture from a certain folder.

Thanx in advance

Olli

sleipnir214 · Aug 6, 2002

Sure. Have PHP output an "<A...>" tag which has as its href attribute the web-server-relative path to the file. ______________________________________________________________________
Never forget that we are
made of the stuff of stars

kusarigama · Aug 6, 2002

Hi,

I did the following:

<a href="

http://www.media-look.de/test/test.jpg">test</a>

... butThe Browser showed me the picture..what did i wrong ?

Olli

PhoenixDown · Aug 6, 2002

You didn't do anything wrong.

sleipnir214 · Aug 6, 2002

When you click on your link, your browser is going to use its defined behavior for acting on the type of file to which the "<A>" tag links.

In the case of an image file, a browser's defined action is to download it and display it. There is no way via HTML to change that behavior that I know of. ______________________________________________________________________
Never forget that we are
made of the stuff of stars

KarveR · Aug 7, 2002

Heres a page I wrote for downloading stuff from a folder that I dont want the public to know exists, This also qrites a textfile for use as a counter to track downloads.

you need two parts (requestfile.php - the bit the user sees) and download.php, (this should remain invisible to the user and if given the $filename will return nothing)

so here goes:

------------------requestfile.php
<?php
$folder="hidden_folder";
if(!file_exists("$folder/$filename&quot

){
echo "<html><head><title>404 - File not found</title></head<<body>";
echo "<h1>Unspecified file or file not found</h1><br> File: <b>$filename</b> Not located on this server";
echo "</body></html>";
}else{
if(isset($filename)){
$counter = "$filename.txt";

if(!file_exists($counter)){
echo "File: $filename has been downloaded 0 times<br>";
}else{

$fd = fopen ($counter, "r&quot

;
$count = fread ($fd, filesize ($counter));
fclose ($fd);

echo "File: <b>$filename </b>has been downloaded <b>$count</b> time(s)<br>";
}

echo "<a href=download.php?filename=$filename&count=$count&counter=$counter>download it</a>";
}else{

echo "<h1> Select a file you muppet!</h1>";
}
}
?>

-------------------download.php
<?php
$folder="hidden_folder";
if(isset($filename)){
if(file_exists("$folder/$filename&quot

){
$size = filesize('$folder/$filename');
header("Content-Type: application/save&quot

;
header("Content-Length: $size&quot

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

;
header("Content-Transfer-Encoding: binary&quot

;
$fh = fopen("$folder/$filename", "r&quot

;
fpassthru($fh);

// increment counter

$count++;
$fp=fopen("$counter","w&quot

;
fputs($fp, $count);
fclose($fp);
exit;

}else{

echo "No file selected";

}
}else{
echo "<h1>Use the proper file selection method or go away!</h1>";
}

?> ______________________________________________________________________
There's no present like the time, they say. - Henry's Cat.

kusarigama · Aug 7, 2002

Hi,

all works fine, but when the JPEG is download and I try to open it, then it is empty. The filesize is also smaller ..

here is the snippet

-------> request.php4
<html>
<head>
<title>Untitled</title>
</head>
<body>
<?
$folder = "test/";
$filename = "test.jpg";
$size = filesize($folder.$filename);
echo "<a href=download.php?filename=$filename&size=$size>download it</a>";
?>
</body>
</html>

-------> downlaod.php4
<?
header("Content-Type: application/save-as&quot

;
header("Content-Length: $size&quot

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

;
header("Content-Transfer-Encoding: binary&quot

;
?>
<html>
<head>
<title>Untitled</title>
</head>
<body>
</body>
</html>

Olli

KarveR · Aug 7, 2002

don't change the download.php code, its a must that it stays as was or it'll send ou 0 length files. no-one will ever get to se it if things work according to plan, the headers will just "shove" the file out. ______________________________________________________________________
There's no present like the time, they say. - Henry's Cat.

KarveR · Aug 7, 2002

Also , to give you an idea, its what I use on my site.

http://virtualkev.com

- check out mysqlexplorer page and then hit the download link. its not a big file but you'll see how download.php reacts to requests

______________________________________________________________________
There's no present like the time, they say. - Henry's Cat.

kusarigama · Aug 8, 2002

Hi,

When I put code over the headers, I get that anoying "Headers already sent" message ...

Olli

KarveR · Aug 8, 2002

So I'll say it again.

DON'T change download.php its invisible to the end user - they NEVER see that page if they use the site properly and if they deliberately navigate to it .. well try it before changing it

______________________________________________________________________
There's no present like the time, they say. - Henry's Cat.

kusarigama · Aug 9, 2002

Oh Yes

Thanx, It works know =)

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downloadind a picture

kusarigama

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sleipnir214

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KarveR

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kusarigama

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KarveR

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KarveR

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kusarigama

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KarveR

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