有些接口用CURL调用的时候，要发送header头信息

如百度的查询快递的接口


PHP代码如下:

$url="https://sp0.baidu.com/9_Q4sjW91Qh4otqbppnN2DJv/pae/channel/data/asyncqury?appid=4001&com={$type}&nu={$deliveryBn}";$headers=array("Host:sp0.baidu.com","Connection:keep-alive","Cache-Control:max-age=0","Accept:text/html,application/xhtml+xml,application/xml;q=0.9,p_w_picpath/webp,*/*;q=0.8","User-Agent:Mozilla/5.0(WindowsNT10.0;WOW64)AppleWebKit/537.36(KHTML,likeGecko)Chrome/43.0.2357.124Safari/537.36","Accept-Encoding:gzip,deflate,sdch","Accept-Language:zh-CN,zh;q=0.8","Cookie:BAIDUID=FAFE6A61C5C95A71A482ABC3315F9228:FG=1;BIDUPSID=FAFE6A61C5C95A71A482ABC3315F9228;PSTM=1435563408;BD_UPN=12314653");$ch=curl_init();curl_setopt($ch,CURLOPT_URL,$url);curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);$output=curl_exec($ch);curl_close($ch);$arr=json_decode($output,true)/**$type是快递公司的代码简称，如:yuantong，shentong，ems,shunfeng,yunda,zhongtong,tiantian,debang,zhaijisong等$deliveryBn则是运单号**/