小i机器人

//机器人回复
function xiaoirobot($openid, $content)
{
//定义app
$app_key = "";
$app_secret = "";
//签名算法
$realm = "xiaoi.com";
$method = "POST";
$uri = "/robot/ask.do";
$nOnce= "";
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
for ($i = 0; $i <40; $i++) {
$nonce .= $chars[ mt_rand(0, strlen($chars) - 1) ];
}
$HA1 = sha1($app_key.":".$realm.":".$app_secret);
$HA2 = sha1($method.":".$uri);
$sign = sha1($HA1.":".$nonce.":".$HA2);
//接口调用
$url = "http://nlp.xiaoi.com/robot/ask.do";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-Auth: app_key="'.$app_key.'", nOnce="'.$nonce.'", signature="'.$sign.'"'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "question=".urlencode($content)."&userId=".$openid."&platform=custom&type=0");
$output = curl_exec($ch);
if ($output === FALSE){
return "cURL Error: ". curl_error($ch);
}
return trim($output);
}