php卷曲很慢

Question

I have a problem with cURL. It takes over 40 seconds to fetch a web page. The function is:

       function get_page(){                 
            $url = get_url();
            $timeout = 1000;
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            curl_setopt($ch, CURLOPT_HEADER, false); 
            curl_setopt($ch, $CURLOPT_RETURNTRANSFER, true);

            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
            $return_data = curl_exec($ch);
            print_r (curl_getinfo($ch)); 
            curl_close($ch);
            return $return_data;
        }

Also, it seems that $return_data = curl_exec($ch) actually dumps the page.

Answer 1

我设法通过将DNS更改为8.8.8.8解决了这个问题