最近因為專案需要，需要用PHP寫一個呼叫雲小蜜的程式，我發現網上還沒有相關的實現版本，我這裡給一個示例。我這裡做的是一個接入公眾號聊天的程式

function reply($dataArr, $keywordArr = array()) {
		$config = getAddonConfig ( 'NoAnswer' ); // 獲取後臺外掛的配置引數
		
		// $this->material_reply ( $config ['stype'] );
		
		// $this->replyText($dataArr['Content']); //接收微信伺服器傳來的訊息內容
		date_default_timezone_set("GMT");
        $accessKeyId="your id";
        $accessSecret="your secret;
        $publicParams = array(
            "Format"        =>  "JSON",
            "Version"       =>  "2017-10-11",
            "AccessKeyId"   =>  $accessKeyId,
            "Timestamp"     =>  date("Y-m-d\TH:i:s\Z"),
            "SignatureMethod"   =>  "HMAC-SHA1",
            "SignatureVersion"  =>  "1.0",
            "SignatureNonce"    =>  substr(md5(rand(1,99999999)),rand(1,9),14),
            "Action"    =>  "Chat",
            "InstanceId"    =>  "your instance id",
            // "Utterance"    =>  "電腦",
        );
        // $publicParams["Utterance"]="電腦";
        $publicParams["Utterance"]="電腦壞了怎麼辦";  //這裡填向阿里雲傳送的內容
        $params = $publicParams;
        $params['Signature']=$this->sign($params, $accessSecret);
        $uri = http_build_query($params);
        $url="https://chatbot.cn-shanghai.aliyuncs.com/?".$uri;  //呼叫阿里雲服務
        $result=$this->curl($url);
        // dump($url);
        // dump($result);
        $content_type=$result->Messages[0]->Type;
        if($content_type=="Recommend"){
			$_recommend=$result->Messages[0]->Recommends;
			$_reply="您可以這樣問:\n";
            foreach ($_recommend as $value) {  
				// echo $value->Title . "<br>";  
				$_reply.=$value->Title."\n";
				
			}
			$this->replyText($_reply);

        }else if($content_type=="Knowledge"){
            $_knowledge=$result->Messages[0]->Knowledge;
			// echo $_knowledge->Content. "<br>"; 
			$this->replyText($_knowledge->Content);
        }
	}

	private function curl($url)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,$url );
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
        $result=curl_exec ($ch);
        return json_decode($result);
    }

    private function sign($params, $accessSecrec, $method="GET"){
        ksort($params);
        $stringToSign = strtoupper($method).'&'.$this->percentEncode('/').'&';

        $tmp = "";
        foreach($params as $key=>$val){
            $tmp .= '&'.$this->percentEncode($key).'='.$this->percentEncode($val);
        }
        $tmp = trim($tmp, '&');
        $stringToSign = $stringToSign.$this->percentEncode($tmp);

        $key  = $accessSecrec.'&';
        $hmac = hash_hmac("sha1", $stringToSign, $key, true);

        return base64_encode($hmac);
    }

    public function percentEncode($value=null){
        $en = urlencode($value);
        $en = str_replace("+", "%20", $en);
        $en = str_replace("*", "%2A", $en);
        $en = str_replace("%7E", "~", $en);
        return $en;
	}
 

參考文獻

[1].php中陣列遍歷的四種方式.http://blog.csdn.net/wks19891215/article/details/51615384

[2].微信公眾號開發之文字訊息自動回覆,以及系統關注自動回覆，php程式碼.https://www.cnblogs.com/xqschool/p/6745113.html

[3].PHP阿里云云解析簽名, 通過API 繫結域名到動態 ip.http://www.cnblogs.com/hanyouchun/p/5382709.html