[SOLVED] PHP misterously adds a space to an images binary stream, please help...

[houseofdreams]

Hi,

 

i have a rather simple "image protection" script. It reads the original filename out of the database, converts that name to the name that the image is saved on the server, hence the protection, because this name has a hash in it and so on...

 

now the problem..

 

When i try to display the jpeg again, with the following code :

 

// Send the attachment headers.
header('Pragma: ');
if (!$context['browser']['is_gecko'])
	header('Content-Transfer-Encoding: binary');
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 525600 * 60) . ' GMT');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', filemtime($filename)) . ' GMT');
header('Accept-Ranges: bytes');
header('Set-Cookie:');
header('Connection: close');
header('Content-Type: image/jpeg');


$fp = fopen($filename, 'rb');

while (!feof($fp))
	{
		echo fread($fp, 8192);
		flush();
	}
fclose($fp);

 

it does read the contents of the image, flushes it to the browser, but it adds a misterious space "%20" or Hex 20 to the beginning of the binary stream. When i take a hex editor and remove this space, the image shows up like it should.

 

Can anyone tell me where this extra space is coming from?

 

thanx !!!!

[Broniukas]

try

 

echo fread(str_replace("%20", " ", "$fp"));

[MadTechie]

LOL and risk messing up the data!

 

trim would work better.. anyways are you sure its on the read and not the insert ?

 

[houseofdreams]

I tried the Trim method the following way :

 

$fp = fopen($filename, 'rb');

while (!feof($fp))
	{
		$data = fread($fp, 8192);
		trim($data);
		echo $data;
		flush();
	}
fclose($fp);

 

Problem remains .. first lines of the output :

 

 ÿØÿà�JFIF�,,��ÿá:âhttp://ns.adobe.com/xap/1.0/�<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>
<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 4.1-c034 46.272976, Sat Jan 27 2007 22:37:37        ">
   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
      <rdf:Description rdf:about=""

 

Still includes the space...

         

[houseofdreams]

Found it...

 

	if (function_exists('ob_get_level'))
	{
		while (@ob_get_level() > 0)
			@ob_end_clean();
	}
	else
	{
		@ob_end_clean();
		@ob_end_clean();
		@ob_end_clean();
	}

	$fp = fopen($filename, 'rb');
	while (!feof($fp))
		{
			$data = fread($fp, 8192);
			trim($data);
			echo $data;
			flush();
		}
	fclose($fp);