php中header()强制文件下载实现代码

  1. function downloadFile($file){
  2. $file_name = $file;
  3. $mime = 'application/force-download';
  4. header('Pragma: public'); // required
  5. header('Expires: 0'); // no cache
  6. header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  7. header('Cache-Control: private',false);
  8. header('Content-Type: '.$mime);
  9. header('Content-Disposition: attachment; filename="'.basename($file_name).'"');
  10. header('Content-Transfer-Encoding: binary');
  11. header('Connection: close');
  12. readfile($file_name); // push it out
  13. exit();
  14. }