使用图灵机器人接口开发微信公众号聊天功能

准备电商比赛的时候申请了个公众号，因为之前错误地申请了订阅号，还是个人类型的，所以基本也没法开发什么功能了。于是就想到之前很火的小黄鸡聊天机器人。不过小黄鸡的接口是要收费的，所以选用了图灵机器人()；也能实现自动聊天。

图灵机器人后台提供了两种接入方式，一种是API接入，一种是微信接入。使用微信接入非常简单，只要在微信后台-开发-基本配置里填写图灵机器人提供的URL和token值就可以。不过这样一来整个公众号只能实现图灵机器人的功能，几乎浪费了一个公众号。所以选择使用API接入。这里使用新浪云提供的SAE。下面是代码。

valid();
}else{
    $wechatObj->responseMsg();
}
class wechatCallbackapiTest
{
    public function valid()
    {
        $echoStr = $_GET["echostr"];
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }
    private function checkSignature()
    {
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];
        $token = TOKEN;
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr);
        $tmpStr = implode( $tmpArr );
        $tmpStr = sha1( $tmpStr );
        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }
    public function responseMsg()
    {
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
        if (!empty($postStr)){
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $RX_TYPE = trim($postObj->MsgType);
            switch ($RX_TYPE)
            {
                case "text":
                    $resultStr = $this->receiveText($postObj);
                    break;
                case "event":
                    $resultStr = $this->receiveEvent($postObj);
                    break;
            }
            echo $resultStr;
        }else {
            echo "";
            exit;
        }
    }
//处理接受到用户消息的事件
    private function receiveText($object)
    {
        $funcFlag = 0;
        $keyword = trim($object->Content);
        $contentStr = callTuling($keyword);
        $resultStr = $this->transmitText($object, $contentStr, $funcFlag);
        return $resultStr;
    }
//处理公众号被关注的事件
    private function receiveEvent($object)
    {
        $contentStr = "";
        switch ($object->Event)
        {
            case "subscribe":
                $contentStr = "你终于来了";
        }
        $resultStr = $this->transmitText($object, $contentStr);
        return $resultStr;
    }
//把图灵机器人返回的数据转换成微信使用的数据格式
    private function transmitText($object, $content, $flag = 0)
    {
        $textTpl = "


%s


%d
";
        $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content, $flag);
        return $resultStr;
    }
}//创建函数调用图灵机器人接口
function callTuling($keyword)
{
    $apiKey = "******"; //填写后台提供的key
    $apiURL = "http://www.tuling123.com/openapi/api?key=KEY&info=INFO"; 
    $reqInfo = $keyword; 
    $url = str_replace("INFO", $reqInfo, str_replace("KEY", $apiKey, $apiURL));
    $ch = curl_init(); 
    curl_setopt ($ch, CURLOPT_URL, $url); 
   curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 
    $file_contents = curl_exec($ch);
    curl_close($ch); 
//获取图灵机器人返回的数据，并根据code值的不同获取到不用的数据
    $message = json_decode($file_contents,true);
    $result = "";
    if ($message['code'] == 100000){
        $result = $message['text'];
    }else if ($message['code'] == 200000){
        $text = $message['text'];
        $url = $message['url'];
        $result = $text . " " . $url;
    }else if ($message['code'] == 302000){
        $text = $message['text'];
        $url = $message['list'][0]['detailurl'];
        $result = $text . " " . $url;
    }else {
        $result = "好好说话我们还是基佬";
    }
    return $result;
}
?>

图灵机器人