php读取文件 更改文件名后提供下载

1. $filename = dirname(__FILE__) . '/oldfilename.exe';
2. $out_filename = 'newfilename.exe';
3. if()) {
4. echo 'Not Found' . $filename;
5. exit;
6. } else {
7. // We'll be outputting a file
8. @header('Accept-Ranges: bytes');
9. @header('Accept-Length: ' . filesize($filename));
10. // It will be called
11. @header('Content-Transfer-Encoding: binary');
12. @header('Content-type: application/octet-stream');
13. @header('Content-Disposition: attachment; filename=' . $out_filename);
14. @header('Content-Type: application/octet-stream; name=' . $out_filename);
15. // The source is in filename
16. $file = @fopen($filename, "r");
17. echo @fread($file, @filesize($filename));
18. @fclose($file);
19. exit;
20. }

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