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PHP file download example code

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Release： 2016-07-25 09:11:57
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Use php to implement forced downloading of files, and header functions are often used. Example, php file download example.

  2. class Downfile {
  3. function downserver($file_name){
  4. $file_path = "./img/".$file_name;
  5. //Transcoding, the file name is converted to gb2312 to solve Chinese garbled characters
  6. $file_name = iconv("utf-8","gb2312",$file_name);
  7. $file_path = iconv("utf-8","gb2312",$file_path);
  8. $fp = fopen($file_path," r") or exit("File does not exist");
  9. //Define the size of each download by leaving the variable empty
  10. $buffer = 1024;
  11. //Get the size of the file
  12. $file_size = filesize($file_path);
  13. / /header("Content-type:text/html;charset=gb2312");
  14. //Will write the four http protocol information used
  15. header("Content-type:application/octet-stream");
  16. header(" Accept-Ranges:bytes");//You can ignore it
  17. header("Content-Length: ".$file_size);//The original text here is Accept-Length. After checking the http protocol, there is no such item
  18. header("Content-Disposition:attachment ;filename=".$file_name);
  19. //Byte counter, records the current number of bytes
  20. $count = 0;
  21. while(!feof($fp) && $file_size-$count>0){
  22. / /Read $buffer-sized data each time from the file stream opened by $fp
  23. $file_data = fread($fp,$buffer);
  24. $count+=$buffer;
  25. //Read the read data
  26. echo $file_data;
  27. }
  28. //Close the file stream
  29. fclose($fp);
  30. }
  31. }
  32. ?>
Copy code

Call this function to pass in the file name to download the file. Pay attention to modifying $file_path in the above code.



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php文件下载实例代码
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