Resume Downloading---PHP

[c139]

Hello ,

 

I am trying to enable my php script to work for download accelerator.Facing following problems

 

1:When i download a file by using Download Accelerator ,I am receiving corrupted file only.

 

2.Same code is working in the case of Gwget 0.96,

 

The following code i got when i searched, but i find that too not working.

 

 

<?php

$file="./notes.zip";

dl_file_resume($file);

 

function dl_file_resume($file){

 

//First, see if the file exists

if (!is_file($file)) { die("<b>404 File not found!</b>"); }

 

//Gather relevent info about file

$len = filesize($file);

$filename = basename($file);

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

 

//This will set the Content-Type to the appropriate setting for the file

switch( $file_extension ) {

case "exe": $ctype="application/octet-stream"; break;

case "zip": $ctype="application/zip"; break;

case "mp3": $ctype="audio/mpeg"; break;

case "mpg":$ctype="video/mpeg"; break;

case "avi": $ctype="video/x-msvideo"; break;

default: $ctype="application/force-download";

}

 

//Begin writing headers

header("Cache-Control:");

header("Cache-Control: public");

 

//Use the switch-generated Content-Type

header("Content-Type: $ctype");

if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {

# workaround for IE filename bug with multiple periods / multiple dots in filename

# that adds square brackets to filename - eg. setup.abc.exe becomes setup[1].abc.exe

$iefilename = preg_replace('/\./', '%2e', $filename, substr_count($filename, '.') - 1);

header("Content-Disposition: attachment; filename=\"$iefilename\"");

} else {

header("Content-Disposition: attachment; filename=\"$filename\"");

}

header("Accept-Ranges: bytes");

 

$size=filesize($file);

//check if http_range is sent by browser (or download manager)

if(isset($_SERVER['HTTP_RANGE'])) {

list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);

//if yes, download missing part

str_replace($range, "-", $range);

$size2=$size-1;

$new_length=$size2-$range;

header("HTTP/1.1 206 Partial Content");

header("Content-Length: $new_length");

header("Content-Range: bytes $range$size2/$size");

} else {

$size2=$size-1;

header("Content-Range: bytes 0-$size2/$size");

header("Content-Length: ".$size);

}

//open the file

$fp=fopen("$file","rb");

//seek to start of missing part

fseek($fp,$range);

//start buffered download

while(!feof($fp)){

//reset time limit for big files

set_time_limit(0);

print(fread($fp,1024*);

flush();

ob_flush();

}

fclose($fp);

exit;

}

?>

 

 

 

According to my assumption i am having problem in fseek($fp,$range);

 

 

 

Could you please help me, How can i enable my php script to work for download accelerator

Thanks