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PHP forces file download (avoid files or images being opened directly in the browser)

WBOY
Release： 2016-07-25 09:00:51
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  3. /**
  4. * The FLEA_Helper_SendFile class is used to send files to the browser
  5. *
  6. * Using FLEA_Helper_SendFile, applications can save important files in
  7. * locations that are inaccessible to the browser. The file contents are then sent to the browser through the program.
  8. * @site http://bbs.it-home.org
  9. */
  10. class FLEA_Helper_SendFile
  11. {
  12. /**
  13. * Send the file content to the browser
  14. *
  15. * @param string $serverPath The path of the file on the server (absolute or relative path)
  16. * @param string $filename The file name sent to the browser (do not use Chinese if possible)
  17. * @param string $mimeType indicates the file type
  18. */
  19. function sendFile($serverPath, $filename, $mimeType = 'application/octet- stream')
  20. {
  21. header("Content-Type: {$mimeType}");
  22. $filename = '"' . htmlspecialchars($filename) . '"';
  23. $filesize = filesize($serverPath);
  24. $ charset = FLEA::getAppInf('responseCharset');//According to the actual file encoding type, such as utf-8, gbk
  25. header("Content-Disposition: attachment; filename={$filename}; charset={$charset}" );
  26. header('Pragma: cache');
  27. header('Cache-Control: public, must-revalidate, max-age=0');
  28. header("Content-Length: {$filesize}");
  29. readfile($serverPath);
  30. exit;
  31. }
  32. }
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php强制文件下载(避免文件或图片直接在浏览器中打开)
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