cURL：“无法连接到主机”

我已经解决了过去，但我绝对不记得如何。cURL：“无法连接到主机”

所以，我试图使用代理将网页提取到我的服务器。

下面是代码：

function curlFile($url,$proxy_ip,$proxy_port,$loginpassw) 
{ 

    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_URL, $url); 
    curl_setopt($ch, CURLOPT_HEADER, 0); 
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt($ch, CURLOPT_PROXYPORT, $proxy_port); 
    curl_setopt($ch, CURLOPT_PROXYTYPE, 'HTTP'); 
    curl_setopt($ch, CURLOPT_PROXY, $proxy_ip); 
    curl_setopt($ch, CURLOPT_HEADER, false); 
    curl_setopt($ch, CURLOPT_VERBOSE, false); 
    curl_setopt($ch, CURLOPT_PROXYUSERPWD, $loginpassw); 
    curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 0); 


    $data = curl_exec($ch); 

    if(curl_errno($ch)){ 
      echo 'Curl error: ' . curl_error($ch); 
    } 

    print_r(curl_getinfo($ch)); 
    print_r(curl_error($ch)); 

    print_r($data); 

    curl_close($ch); 

    return $data; 
}

所有它目前是输出：

Curl error: couldn't connect to hostArray ([url] => http://www.drkameleon.com [content_type] => [http_code] => 0 [header_size] => 0 [request_size] => 0 [filetime] => -1 [ssl_verify_result] => 0 [redirect_count] => 0 [total_time] => 0.007872 [namelookup_time] => 0.007537 [connect_time] => 0 [pretransfer_time] => 0 [size_upload] => 0 [size_download] => 0 [speed_download] => 0 [speed_upload] => 0 [download_content_length] => -1 [upload_content_length] => -1 [starttransfer_time] => 0 [redirect_time] => 0) couldn't connect to host

因此，任何想法？可能会出现什么问题？

来源

2013-07-31 Dr.Kameleon