PHP Mutli Range Resume Supported segmented downloading

noaman

Hi
I am using free download manager to test multi thread downloading with resume support.The programming language used as you can see is PHP.

if(isset($_SERVER['HTTP_RANGE']))
{
// Resume requested
preg_match('/bytes=(\d+)-(\d+)?/', $_SERVER['HTTP_RANGE'], $matches);
$range=explode('-', $_SERVER['HTTP_RANGE'], 2);
$items=count($range);
if($items != 2){
header('HTTP/1.1 416 Requested Range Not Satisfiable');
die(); }
$offset = $range[0];
$length = $range[1] - $offset;
$content_length=$length-1;
header("HTTP/1.1 206 Partial Content");
header('Content-Range: bytes ' . $offset . '-' . ($offset + $length) . '/' . $filesize);
$current_position=$offset;
$next_postion=(int)$range[1];
header("Content-Length: ".$content_length);
$chunk="SOme_aribitray_data";
echo $chunk;
die();
}


The problem is that it is not allowing me to create segments or parts.What cany be the reason?
I think the error is in this portion of the code ....

Also How do you debug this kind of PHP code ?
I have installed ModHeader Chrome Plugin.But can anybody recommend some dev tools for http protocol and headers

Thanx in advance

Nixtren

Fiddler2 is an HTTP Proxy used for HTTP debugging. One of the essentials tools in my opinion. Only available for Windows though (maybe you can run it under Mono if your computer is a Linux one).

noaman

@nixtren
Thanx for the tool .I will look into that