老師，如何構(gòu)建header頭信息啊
POST /user/getToken.json HTTP/1.1 Host: api.cn.rong.io App-Key: uwd1c0sxdlx2 Nonce: 14314 Timestamp: 1408706337 Signature: 890b422b75c1c5cb706e4f7921df1d94e69c17f4 Content-Type: application/x-www-form-urlencoded Content-Length: 78
2015-09-21
curl_setopt('ch',CURL_HEADER);