index.php

    <?php
   public function open_file_exp_doc($url){
header('Content-Description:NpGet-Archistore-Files');
header("Content-Type: ".$this->FileMtipe($url));
header("Content-Disposition: inline; filename=".basename($url));
header('Content-Transfer-Encoding: binary\n');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
ob_clean();
flush();
readfile($url);

  }     


  public function FileMtipe($url){
    $ctype=null;
    $ext=pathinfo($url, PATHINFO_EXTENSION);
    switch ($ext) {
case "pdf": $ctype="application/pdf"; break;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "xml": $ctype="text/plain"; break;
case "txt": $ctype="text/plain"; break;
case "docx":$ctype="text/plain"; break;
case "doc": $ctype="text/plain"; break;
case "csv": $ctype="text/plain"; break;
case "sds": $ctype="text/plain"; break;
case "prn": $ctype="text/plain"; break;
case "doc": $ctype="application/msword"; break;
case "xls": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":$ctype="image/jpeg"; break;
case "jpg":$ctype="image/jpeg"; break;


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


     ?>