如何获取PHP中复制功能的进度状态？ [英] How to get the progress status of the copy function in PHP?

问题描述

我需要知道如何获取PHP中 copy（）函数的状态。

I need to know how to get the status of the copy() function in PHP.

推荐答案

您需要使用此功能才能下载远程文件。写自己的复制功能。首先通过HTTP HEAD请求检查文件大小，例如使用此解决方案：

You'll need to write your own copy function. First check the file size through a HTTP HEAD request, for example with this solution:

http://php.net/manual/en/function.filesize.php#92462

然后执行此操作撷取档案：

Then do this to fetch the file:

$remote = fopen('remote-file', 'r');
$local = fopen('local-file', 'w');

$read_bytes = 0;
while(!feof($remote)) {
  $buffer = fread($remote, 2048);
  fwrite($local, $buffer);

  $read_bytes += 2048;

  //Use $filesize as calculated earlier to get the progress percentage
  $progress = min(100, 100 * $read_bytes / $filesize);
  //you'll need some way to send $progress to the browser.
  //maybe save it to a file and then let an Ajax call check it?
}
fclose($remote);
fclose($local);

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