Can you help explain this code? It looks like you're on the right track but
have a few flaws (at first glance).
> <?php
> session_cache_limiter('public');
> session_start();
Is there a reason to be using sessions here?
> set_time_limit(0);
> $file=$_REQUEST['file'];
> $extstart=strpos($file, ".");
What does $extstart contain now?
> $ext=substr($file, $extstart+1);
So $ext is now a piece of the file. Why?
> $dir="d:\\downloadable_courses";
> $size=filesize($dir."\\".$file);
> header("Accept-Ranges: bytes");
So $size is now the size of the entire file (not the piece).
> if(isset($_ENV['HTTP_RANGE'])) {
> list($a, $range)=explode("=",$_ENV['HTTP_RANGE']);
So $a is now bytes, and $range is something like 123-456
> str_replace($range, "-", $range);
This makes no sense. The range requested is bytes 123 through 456, and you're
converting this to 123456. Why?
> $size2=$size-1;
> header("Content-Range: $range$size2/$size");
> $new_length=$size2-$range;
This will definitely not work, based on my comments above.
If someone sends this header:
Range: bytes=0-1023
and your resource is 2048 bytes in size, your response should include this
header:
Content-Range: bytes 0-1023/2048
Work on generating the correct string before you bother actually using them as
headers and trying for the full solution.
Hope that helps.
Chris
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