PHP：CURL库：获取curl_exec的状态

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问题描述

我在PHP中使用cURL来编写一个函数来获取远程xml文件到我的本地文件夹。一切正常，但我有一个问题：

I am using cURL in PHP to write a function to get a remote xml file into my local folder. Everything works fine however I have a question:

  $fileIn = curl_init("http://some-remote-host.com/file.xml);
  $fileOut = fopen('myLocal.xml", "w");

  curl_setopt($fileIn, CURLOPT_FILE, $fileOut);
  curl_setopt($fileIn, CURLOPT_HEADER, 0);

  $isCopied = curl_exec($fileIn);
  curl_close($fileIn);
  fclose($fileOut);

  if(!$isCopied)
     return false;
  else
     //do something else

根据我阅读的文档， $ isCopied在远程文件不存在时应该为false，并且不应该有myLocal.xml，但是我的 if（！$ isCopied）似乎不是加工。这是我的myLocal.xml的内容

Based on the documentation I read, $isCopied is supposed to be false when the remote file does not exist, and there shouldn't be myLocal.xml but my if(!$isCopied) doesn't seem tobe working. And this is the content of my myLocal.xml

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL something.xml was not found on this server.</p>
<hr>
<address>Apache Server at somehost.com Port 443</address>
</body></html>

我的问题是：如何获取一个布尔变量告诉我什么时候成功，什么时候没有。（表示远程文件不存在时）。

My question is: How to get a boolean variable telling me when it succeeded and when it did not. (means when the remote file doesn not exist).

谢谢。

获取curl

PHP：CURL库：获取curl_exec的状态

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