Resumable Download

[bogeyman]

Dear all,

 

I try to make a PHP script for resumable download, so I try to search it on search engine. I got it and I modified the code a little bit. The code is like this

 

<?php
$file = "D:\\Software\\Oracle Instant Client\\instantclient-basic-win32-10.1.0.4-20050513.zip";
$fileName = "InstantClient.zip";

$filesize = filesize($file);

$offset = 0;
$length = $filesize;

if ( isset($_SERVER['HTTP_RANGE']) ) {
        $partialContent = true;

        preg_match('/bytes=(\d+)-(\d+)', $_SERVER['HTTP_RANGE'], $matches);

        $offset = intval($matches[1]);
        $length = intval($matches[2]) - $offset;
} else {
        $partialContent = false;
}

$file = fopen($file, 'r');

fseek($file, $offset);

$data = fread($file, $length);

fclose($file);

if ( $partialContent ) {
        header('HTTP/1.1 206 Partial Content');
        header('Content-Range: bytes ' . $offset . '-' . ($offset + $length) . '/' . $filesize);
}

header('Content-Type: ' . $ctype);
header('Content-Length: ' . $filesize);
header('Content-Disposition: attachment; filename="' . $fileName . '"');
header('Accept-Ranges: bytes');

print($data);
?>

 

I try run the script with Firefox, then I pause the download process. Then the problem start. I got an error message like this.

 

InstantClient.zip.part could not be saved,  because the source file could not be read.

 

Try it again later, or contact the server administrator.

 

I can't resume my download. I just can start it from the begining. Can anyone tell me what's wrong?

 

Thanks before.