通过php下载文件并重命名

通过php下载文件并重命名

$filename = dirname(__FILE__) . '/oldfilename.jpg';
$out_filename = 'newfilename.jpg';
if( ! file_exists($filename)){
  echo 'Not Found' . $filename;
  exit;
} else {
  // We'll be outputting a file
  header('Accept-Ranges: bytes');
  header('Accept-Length: ' . filesize($filename));
  // It will be called
  header('Content-Transfer-Encoding: binary');
  header('Content-type: application/octet-stream');
  header('Content-Disposition: attachment; filename=' . $out_filename);
  header('Content-Type: application/octet-stream; name=' . $out_filename);
  // The source is in filename
   if(is_file($filename) && is_readable($filename)){
    $file = fopen($filename, "r");
    echo fread($file, filesize($filename));
    fclose($file);
   }
  exit;
}

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