<?php
function ftransfer($downloadpath) {
  if (file_exists($downloadpath)) {
    set_time_limit(0);
    ini_set("memory_limit","512M");
    ini_set("max_input_time","20000");
    ini_set("max_execution_time","20000");
    $path_parts = pathinfo($downloadpath);
    $filename=$path_parts['basename'];
    header("Content-type: ".getmtype($downloadpath));
    header('Content-disposition: attachment; filename="'.$filename.'"');
    echo file_get_contents($downloadpath);
    exit;
  }
  else { die('Error: No such file ('.$downloadpath.')'); }
  exit;
}
function getmtype($file_path) {
  $mtype = '';
  if (function_exists('finfo_file')) {
    $finfo = finfo_open(FILEINFO_MIME); // return mime type
    $mtype = finfo_file($finfo, $file_path);
    finfo_close($finfo);
  }
  else if (function_exists('mime_content_type')) {
    $mtype = mime_content_type($file_path);
  }
  if ($mtype == '') {
    $mtype = "application/force-download";
  }
  return $mtype;
}