Problem reading Large Files

[enigma12]

Goodmorning every one ,

I been learning php lately and i bumped into a strange problem , i was trying to read a binary file and print it into a php file with the appropriate headers , simply speaking the Binary file will be embedded into a php file with a .php extension but with the headers matching the original Binary file , I have suceeded doing the same with smaller files but due the memory limitaton of php i cant do the same for files bigger than 8m is there any work around ..... or solution for this problem

[thorpe]

not too sure, but there might be a setting for this in your php.ini

[enigma12]

Wat im actually trying to do is hide the url of the actual binary file and check the validity of the referrer url .

i heard flush and ob_flush but im too inexperienced to code it out just 15 days old 😛

Here is the code i came up with till now , the binary file i might be using may be jpeg or any media file and it shud stream

<?php
#Take the file
$fileIn=$_SERVER['QUERY_STRING'];
#secure directory
$way='/secure/forbidden/';

$file='c:/xampp/htdocs'.$way.$fileIn.'.flv';
#get file size
$len = filesize($file);

$filename = basename($file);
$file_extension = strtolower(substr(strrchr($filename,"."),1));

$content = file_get_contents($file);

$etag = '"'.md5($content).'"';
header("ETag: {$etag}");

header("Content-Type: text/plain; charset=UTF-8");
header("Content-Length: {$len}");
header("Accept-Ranges: bytes");
header("Content-Transfer-Encoding: binary");

print $content;
?>

Hope i wud get a workaround with all you guys around 😃

[mtmosier]

Normaly I'd suggest readfile instead of file_get_contents for this, but according to user comments in the manual it has problems with large files too. As usual there is a workaround in the user comments. Try using this function after your headers:

<?php
function readfile_chunked ($filename) {
  $chunksize = 1*(1024*1024); // how many bytes per chunk
  $buffer = '';
  $handle = fopen($filename, 'rb');
  if ($handle === false) {
   return false;
  }
  while (!feof($handle)) {
   $buffer = fread($handle, $chunksize);
   print $buffer;
  }
  return fclose($handle);
}
?>

(This was posted by Rob Funk.)

[enigma12]

i tried with read file but the content disposition header is killing me .. i want the binary file content to be inline in the php document , i tried gving a header(Content Disposition:inline;filename=\"{$filename}\");;
but its asking me the save as dialogue which i really dont want , cant we implement something like check if the buffer is full and flush, mtmosier i will try using ur function instead of the file_get_content and get back to this topic very soon 😃