PHP下载远程大文件并获取大小的代码如下供大家参考：

<!--?php

  // 暂不支持断点续传

  // $url = 'http://www.mytest.com/debian.iso&#39;; 不知道为何获取本地文件大小为0

  $url = 'http://192.168.8.93/download/vm-672/18/0.vmdk';

  $file = basename($url);

  $header = get_headers($url, 1);

  $size = $header['Content-Length'];

 

  $fp = fopen($url, 'rb');

  if ($fp === false) exit('文件不存在或打开失败');

 

  header('Content-Description: File Transfer');

  header('Content-Type: application/octet-stream');

  header('Content-Disposition: attachment; filename="'.$file.'"');

  header('Content-Transfer-Encoding: binary');

  header('Expires: 0');

  header('Cache-Control: must-revalidate, post-check=0, pre-check=0');

  header('Pragma: public');

  header('Content-Length: ' . $size);

 

  ob_clean();

  ob_end_flush();

  set_time_limit(0);

   

  $chunkSize = 1024 * 1024;

  while (!feof($fp)) {

    $buffer = fread($fp, $chunkSize);

    echo $buffer;

    ob_flush();

    flush();

  }

  fclose($fp);

  exit;</pre-->

<p>

    <span style="font-size: 14px;"><strong style="white-space: normal; font-family: Segoe, " segoe="" ui",="" "dejavu="" sans",="" "trebuchet="" ms",="" verdana,="" "="" sans-serif";="" background-color:="" rgb(204,="" 255,="" 204);"=""></strong></span><br>

</p>

<p>

    <span style="font-family: Segoe, " segoe="" ui",="" "dejavu="" sans",="" "trebuchet="" ms",="" verdana,="" "="" sans-serif";="" background-color:="" rgb(255,="" 255,="" 255);="" font-size:="" 14px;"="">以上这篇php下载远程大文件并获取远程文件大小的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持simple求知网。</span>

</p>

希望本文所述对大家程序设计有所帮助。