curl 获取绑定ip的url链接的头信息

摘要: curl绑定ip，curl获取头信息

直接上代码：

function get_header( $url , $host_ip = null){
$ch = curl_init(); //curl初始化

if(!is_null($host_ip)){//需要绑定ip

$urldata = parse_url($url);

//url有参数

if (!empty($urldata['query']))
$urldata['path'] .= "?".$urldata['query'];

//域名设置
$headers = array("Host: ".$urldata['host']);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

//需要绑定的ip
$url = $urldata['scheme']."://".$host_ip.$urldata['path'];

}

curl_setopt($ch, CURLOPT_URL, $url);//获取的地址

curl_setopt ($ch, CURLOPT_HEADER, 1);//获取头信息
curl_setopt($ch, CURLOPT_NOBODY,1);//body信息不获取
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec ($ch);

//var_dump($result);
curl_close ($ch);//关闭curl
return $result;

}