Html href download file with a different name.

**omerbutt** · Feb 8 '14, 12:34 AM

hi gonzaloJr,
see below code for example you can use the anchor tag to download the file by specifying in this way

Code:

<a href='download.php?f=124521883213321313.pdf&fn=new-file-name.pdf'>Click here to download</a>

where the f is the original file name i.e in time stamp or any coded format and the fn is the new file name or the desired decoded name that you want , sve the following file and try this code

FILENAME download.php

Code:

<?php
# Sample call (browser will try to save with new file name):
#    download.php?f=phptutorial.zip&fc=php123tutorial.zip
###############################################################

// Allow direct file download (hotlinking)?
// Empty - allow hotlinking
// If set to nonempty value (Example: example.com) will only allow downloads when referrer contains this text
define('ALLOWED_REFERRER', '');

// Download folder, i.e. folder where you keep all files for download.
// MUST end with slash (i.e. "/" )

define('BASE_DIR','E:/xampp/htdocs/ews/vanguard/docs');

// log downloads?  true/false
define('LOG_DOWNLOADS',true);

// log file name
define('LOG_FILE','downloads.log');

// Allowed extensions list in format 'extension' => 'mime type'
// If myme type is set to empty string then script will try to detect mime type 
// itself, which would only work if you have Mimetype or Fileinfo extensions
// installed on server.
$allowed_ext = array (
  // archives
  // documents
  'pdf' => 'application/pdf',
  'doc' => 'application/msword',
  'docx' => 'application/msword',
  'ppt' => 'application/msword',
  'pptx' => 'application/octet-stream',
  'pptx' => 'application/octet-stream',
  'wpd' => 'application/octet-stream',
  'xls' => 'application/octet-stream',
  'xlsx' => 'application/octet-stream'
);



####################################################################
###  DO NOT CHANGE BELOW
####################################################################

// If hotlinking not allowed then make hackers think there are some server problems
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
  die("Internal server error. Please contact system administrator.");
}

// Make sure program execution doesn't time out
// Set maximum script execution time in seconds (0 means no limit)
set_time_limit(0);

if (!isset($_GET['f']) || empty($_GET['f'])) {
  die("Please specify file name for download.");
}

// Get real file name.
// Remove any path info to avoid hacking by adding relative path, etc.
$fname = basename($_GET['f']);

// Check if the file exists
// Check in subfolders too
function find_file ($dirname, $fname, &$file_path) {
  $dir = opendir($dirname);

  while ($file = readdir($dir)) {
    if (empty($file_path) && $file != '.' && $file != '..') {
      if (is_dir($dirname.'/'.$file)) {
        find_file($dirname.'/'.$file, $fname, $file_path);
      }
      else {
        if (file_exists($dirname.'/'.$fname)) {
          $file_path = $dirname.'/'.$fname;
          return;
        }
      }
    }
  }

} // find_file

// get full file path (including subfolders)
$file_path = '';
find_file(BASE_DIR, $fname, $file_path);

if (!is_file($file_path)) {
  die("File does not exist. Make sure you specified correct file name."); 
}

// file size in bytes
$fsize = filesize($file_path); 

// file extension
$fext = strtolower(substr(strrchr($fname,"."),1));

// check if allowed extension
if (!array_key_exists($fext, $allowed_ext)) {
  die("Not allowed file type."); 
}

// get mime type
if ($allowed_ext[$fext] == '') {
  $mtype = '';
  // mime type is not set, get from server settings
  if (function_exists('mime_content_type')) {
    $mtype = mime_content_type($file_path);
  }
  else if (function_exists('finfo_file')) {
    $finfo = finfo_open(FILEINFO_MIME); // return mime type
    $mtype = finfo_file($finfo, $file_path);
    finfo_close($finfo);  
  }
  if ($mtype == '') {
    $mtype = "application/force-download";
  }
}
else {
  // get mime type defined by admin
  $mtype = $allowed_ext[$fext];
}

	// Browser will try to save file with this filename, regardless original filename.
	// You can override it if needed.
	
	if (!isset($_GET['fc']) || empty($_GET['fc'])) {
	  $asfname = $fname;
	}
	else {
	  // remove some bad chars
	  $asfname = str_replace(array('"',"'",'\\','/'), '', $_GET['fc']);
	  if ($asfname === '') $asfname = 'NoName';
	}

	// set headers
	header("Pragma: public");
	header("Expires: 0");
	header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
	header("Cache-Control: public");
	header("Content-Description: File Transfer");
	header("Content-Type: $mtype");
	header("Content-Disposition: attachment; filename=\"$asfname\"");
	header("Content-Transfer-Encoding: binary");
	header("Content-Length: " . $fsize);

// download
// @readfile($file_path);
$file = @fopen($file_path,"rb");
if ($file) {

  while(!feof($file)) {
    print(fread($file, 1024*8));
    flush();
    if (connection_status()!=0) {
      @fclose($file);
      die();
    }
  }
  @fclose($file);
}

//if (!LOG_DOWNLOADS) die();


$f = @fopen(LOG_FILE, 'a+');
if ($f) {
  @fputs($f, date("m.d.Y g:ia")."  ".$_SERVER['REMOTE_ADDR']."  ".$fname."\n");
  @fclose($f);
}
?>

regards,
Omer aslam

Html href download file with a different name.

Html href download file with a different name.

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