// 要访问的目标页面

    $ targetUrl="http://baidu.com";

    // 代理服务器

    $proxyServer="http":"http://ip:port";

    // 隧道身份信息

    $ch=curl_init ();

    curl_setopt($ch, CURLOPT_URL, $targetUrl);

    curl_setopt ($ch, CURLOPT_HTTPPROXYTUNNEL, false);

    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

     // 设置代理服务器

    curl_setopt($ch, CURLOPT_PROXYTYPE, 0); //http

    curl_setopt ($ch, CURLOPT_PROXYTYPE, 5); //sock5

    curl_setopt($ch, CURLOPT_PROXY, $proxyServer);

     // 设置隧道验证信息

    curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);                                

    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727;)");

    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3 );

    curl_setopt($ch, CURLOPT_TIMEOUT, 5 );

    curl_setopt($ch, CURLOPT_HEADER, true );

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true );

    $result =curl_exec($ch );

    curl_close($ch );

    var_dump($result );