curl真是个不错的东西
curl获取用户IP地址伪造来路和浏览器突破防盗链
实例代码：
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($curl, CURLOPT_USERAGENT, ‘Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36’);
$reIP=$_SERVER[“REMOTE_ADDR”];
curl_setopt($curl,CURLOPT_HTTPHEADER,array(“X-FORWARDED-FOR:$reIP”,”CLIENT-IP:$reIP”));
curl_setopt($curl, CURLOPT_REFERER, ‘url’);
$data = curl_exec($curl);
curl_close($curl);
return $data;