PHP BUDDY

I want to download files from a ftp server using a php script with ftp_get(). Is it possible to download files from a server using a script with ftp_get. I mean are the files saved on the users computer or on the webserver? I want to use this script on computers that are behind a firewall that only alows access to the internet on port 80 and the http protocol.

function get_web_page( $url )
{
 $options = array(
  CURLOPT_RETURNTRANSFER => true,     // return web page
  CURLOPT_HEADER         => false,    // don't return headers
  CURLOPT_FOLLOWLOCATION => true,     // follow redirects
  CURLOPT_ENCODING       => "",       // handle compressed
  CURLOPT_USERAGENT      => "spider", // who am i
  CURLOPT_AUTOREFERER    => true,     // set referer on redirect
  CURLOPT_CONNECTTIMEOUT => 120,      // timeout on connect
  CURLOPT_TIMEOUT        => 120,      // timeout on response
  CURLOPT_MAXREDIRS      => 10,       // stop after 10 redirects
 );

 $ch      = curl_init( $url );
 curl_setopt_array( $ch, $options );
 $content = curl_exec( $ch );
 $err     = curl_errno( $ch );
 $errmsg  = curl_error( $ch );
 $header  = curl_getinfo( $ch );
 curl_close( $ch );

 $header['errno']   = $err;
 $header['errmsg']  = $errmsg;
 $header['content'] = $content;
 return $header;
}