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使用 PHP 限制下载速度

WBOY
WBOYOriginal
2016-06-13 09:42:23905browse

各位做运维的童鞋,会经常遇到一个问题,那就是有人再办公室下载东西,影响大家上网、办公。同样的问题,要是出现在了服务器上面,估计会让老板发火,事情发展的会更糟……今天特此想大家推荐几行关于PHP限制网速的代码,希望给大家一些帮助。

[代码] [PHP]代码

view source print? 01 // local file that should be send to the client 02 $local_file 'test-file.zip'; 03   04 // filename that the user gets as default 05 $download_file 'your-download-name.zip'; 06   07 // set the download rate limit (=> 20,5 kb/s) 08 $download_rate = 20.5; 09   10 if(file_exists($local_file) && is_file($local_file)) { 11   12  // send headers 13  header('Cache-control: private'); 14  header('Content-Type: application/octet-stream'); 15  header('Content-Length: '.filesize($local_file)); 16  header('Content-Disposition: filename='.$download_file); 17   18  // flush content 19  flush(); 20   21  // open file stream 22  $file fopen($local_file"r"); 23   24  while (!feof($file)) { 25   26  // send the current file part to the browser 27  print fread($fileround($download_rate * 1024)); 28   29  // flush the content to the browser 30  flush(); 31   32  // sleep one second 33  sleep(1); 34  } 35   36  // close file stream 37  fclose($file); 38   39 } 40   41 else { 42  die('Error: The file '.$local_file.' does not exist!'); 43 }
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