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php curl提示Warning: curl_setopt() [function.curl-setopt]: CURLOPT_FOLLOWLOCATION cannot be activated…错误解决方法

ringa_lee
ringa_leeOriginal
2018-05-14 13:37:206798browse


在我们使用php curl函数时提示Warning: curl_setopt() [function.curl-setopt]: CURLOPT_FOLLOWLOCATION cannot be activated when in safe_mode or an open_basedir is set…错误,下面我就来介绍碰到此问题要如何来排除问题吧。

如果当你在php中运行 CURLOPT_FOLLOWLOCATION 然后得到php提示错误信息为:
Warning: curl_setopt() [function.curl-setopt]: CURLOPT_FOLLOWLOCATION cannot be activated when in safe_mode or an open_basedir is set…

错误中提到两个关键safe_mode和 open_basedir,如果你是虚拟主机的没有设置APPCHE的权限是不能通过修改服务器配置来解决问题的,

一般来说,服务器配置safe_mode都为off,然后为了一些安全对用户有一些限制,通过设置open_basedir来限制虚拟主机用户的PHP执行文件夹,

因此当你使用CURLOPT_FOLLOWLOCATION (php curl函数,深层抓取数据)的时候,一旦有301转向等就会出现文中提到的错误信息.

在查了相关资料后,很快找到了解决办法

具体做法是在curl语句用不使用curl_exec函数

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

自定义一个curl_exec函数

function curlExec(/* Array */$curlOptions='', /* Array */$curlHeaders='', /* Array */$postFields='')
{
  $newUrl = '';
  $maxRedirection = 10;
  do
  {
    if ($maxRedirection<1) die(&#39;Error: reached the limit of redirections&#39;);

    $ch = curl_init();
    if (!empty($curlOptions)) curl_setopt_array($ch, $curlOptions);
    if (!empty($curlHeaders)) curl_setopt($ch, CURLOPT_HTTPHEADER, $curlHeaders);
    if (!empty($postFields))
    {
      curl_setopt($ch, CURLOPT_POST, 1);
      curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields);
    }
    
    if (!empty($newUrl)) curl_setopt($ch, CURLOPT_URL, $newUrl); // redirect needed
    
    $curlResult = curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    if ($code == 301 || $code == 302 || $code == 303 || $code == 307)
    {
      preg_match(&#39;/Location:(.*?)\n/i&#39;, $curlResult, $matches);
      $newUrl = trim(array_pop($matches));
      curl_close($ch);

      $maxRedirection--;
      continue;
    }
    else // no more redirection
    {
      $code = 0;
      curl_close($ch);
    }
  }
  while($code);
  return $curlResult;
}

 


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