php的file_get_contents和curl差距

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php的file_get_contents和curl的差距好大呀,同样通过接口获取数据用file_get_contents函数打开需要两秒,curl不到一秒,差距呀!!



function curl_get_contents($durl){
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $durl);
  curl_setopt($ch, CURLOPT_TIMEOUT, 5);
  curl_setopt($ch, CURLOPT_USERAGENT, _USERAGENT_);
  curl_setopt($ch, CURLOPT_REFERER,_REFERER_);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $r = curl_exec($ch);
  curl_close($ch);
   return $r;
}


用这个函数curl_get_contents代替file_get_contents 



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