problem in my php downloading script with headers

[like_php]

Hello for all

I have problem in downloading file by php script , this is my code :

    $path = "/home/user/public_html/foldername"; //Change "user" to your username 
    $mainpath = "$path$file"; 
    header("Cache-Control: ");# leave blank to avoid IE errors 
    header("Pragma: ");# leave blank to avoid IE errors 
    header("Content-type: application/octet-stream"); 
    header("Content-Disposition: attachment; filename=\"".$file."\""); 
    header("Content-length:".(string)(filesize($mainpath))); 
    sleep(1); 
    readfile("$mainpath"); 
 

the link for this code is : www.sitename.com?file=file.zip

when click for this link its ask you to download the file and when click at save , it save to ur computer with file name and file type but its empty :

for example if file.zip with size 0.5 mb download only empty file with size 200 byte

hope you can help me

Thanks alot

[Jack_McSlay]

is it the entire code? because it sounds like you're trying to read the var $file as if was a global registered through register_globals, which most hosting services, as well as PHP's default config since 4.2.0(I think) have it disabled due to security issues

you should try replacing $file with $_GET['file']

if does not work, try opening the downloaded file on notepad and post here what's in it, it could make it easier to find out what is the problem (because it likely contains error messages)

[like_php]

thaniks alot Mr.Jack
the script work now