PHP images with fread

Problem with fread<ing> images and outputing on IIS

[dldeskins]

Hello all,

I am having a problem with fread (or any other method) displaying an image on a Windows system (not my choice).

My script basically gets an image name from the db, reads it and displays it. I am using this to obscure the real name of the image and give it a new image name. The script works on my development box but doesn't on the production box... it only outputs garbage (like you would open an image in notepad).

I have checked and double checked usual culprits (magic quotes, etc.). The same version of PHP is on the dev and prod boxes.

here is my code:

 if(!is_null($image) && file_exists($image))
 {
 $contents = '';
 $size = getimagesize($image);
 $handle = fopen($image, "rb");
 while (!feof($handle)) {
  $contents .= fread($handle, 1024);
 }
 fclose($handle);
 $extension = strtolower(substr(strrchr($image, "."), 1));
 }
 header("Cache-Control: public");
 header ("Content-type: image/jpg");
 header("Content-Disposition: inline; filename=\"". $_GET['part'] . "\"");
 header('Content-Length: ' . filesize($image));
 print $contents;

BTW, $size here was just to check to see if the image functions worked, and they do. However, imagejpeg gives me the same output as the code above.

Any Suggestions?

Thanks

[joelgreen]

Try setting

Content-Disposition: attachment

And if that does not work, maybe even header('Content-type: application/force-download');

[dldeskins]

I tried that, just to see if the image would download intact... the image was still corrupted. I want to display it inline, as an image in a page, so it has to be inline.

[whoisgregg]

What's an example of $_GET['part']? Perhaps, and this is just a random guess, the browser cares about the filename ending and $_GET['part'] doesn't include one?

header("Content-Disposition: inline; filename=\"". $_GET['part'] . ".jpg\""); 

Added Otherwise, I would recommend looking at the return headers from your development box and your production box and seeing what is different.

[dldeskins]

Greg and Joel,

Thanks for your help, but I found it myself. Isn't that the way that it usually is, start talking and you figure it out?

The problem was that I was including a class file. At the end of the class file, I had a closing "?>", but also an extra line (carriage return). This file was different from the on on my dev box. By doing this, I was sending a header before the headers in my code. There was no error because the errors were turned off.

Here is the url:
<snip>

Thanks again,
Don

[edited by: eelixduppy at 7:45 pm (utc) on Oct. 3, 2007]
[edit reason] no urls, please [/edit]

[whoisgregg]

Glad you got it sorted, dldeskins. :)