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  • 微信公众平台开发接口PHP SDK

    以前没接触过微信公众平台开发,前几天刚找到实习公司就要求我做一个微信公众平台的应用,于是乎开始学习微信公众平台开发接口的调用,看开发文档之后还是不知道从何入手,只好上网找入门资料,终于在方倍工作室找到了完整的SDK,理解了思路之后其实也挺简单的,无非就是进行用户、微信服务器、开发者服务器三者之间的通信。下面是我参考方倍工作室SDK之后之间写的一个SDK,主要是响应文本消息和CLICK按钮消息,获取用户基本信息,当然并没有包含所有的消息类型和事件。更完整的SDK请参考方倍工作室,链接:http://www.cnblogs.com/txw1958/p/weixin-php-sdk.html。

    $token = 'qiduoyun';

    $appid = 公众号appid;

    $appsecret = 公众号appsecret;

    $wechat = new Wechat($token,$appid,$appsecret);

    if(!isset($_GET['echostr'])) {
      $wechat->responseMsg();
    } else {
      $wechat->valid();
    }

    class Wechat
    {
      private $token;
      private $appid;
      private $appsecret;

      public function __construct($token,$appid,$appsecret)
      {
        $this->token = $token;
        $this->appid = $appid;
        $this->appsecret = $appsecret;
      }

      //验证消息真实性
      public function valid()
      {
        $echostr = $_GET['echostr'];
        if($this->checkSignature()) {
        echo $echostr;
        exit;
        }
      }

      //验证签名
      private function checkSignature()
      {
        $token = $this->token;
        $timestamp = $_GET['timestamp'];
        $nonce = $_GET['nonce'];
        $signature = $_GET['signature'];

        $tmpArr = array($token,$timestamp,$nonce);
        sort($tmpArr,SORT_STRING);
        $tmpStr = implode($tmpArr);
        $tmpStr = sha1($tmpStr);

        if($tmpStr == $signature) {
        return true;
        } else {
        return false;
        }
      }

      //获取access_token
      private function get_access_token($appid,$appsecret)
      {
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" .
        $appid . "&secret=" . $appsecret;
        $output = file_get_contents($url);
        $jsoninfo = json_decode($output,true);
        $access_token = $jsoninfo['access_token'];
        return $access_token;
      }

      //响应消息
      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':
            $result = $this->receiveText($postObj);
            break;
          case 'event':
            $result = $this->receiveEvent($postObj);
            break;
          default:
            $result = "unknown message type: " . $RX_TYPE;
            break;
          }
          echo $result;
        } else {
          echo '';
          exit;
        }
      }

      //接收文本消息
      private function receiveText($object)
      {
        switch($object->Content)
        {
        case '猜猜我是谁': //发送单图文消息:用户基本信息

          //获取access_token
          $access_token = $this->get_access_token($this->appid,$this->appsecret);

          //获取用户信息
          $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=" .
          $access_token . "&openid=" . $object->FromUserName . "&lang=zh_CN";
          $output = file_get_contents($url);
          $jsoninfo = json_decode($output,true);

          if($jsoninfo['sex'] == 1) {
            $sex = "男";
          } else if($jsoninfo['sex'] == 2) {
            $sex = "女";
          } else {
            $sex = "未知";
          }
          $content = array();
          $content[] = array('Title' => "我知道你是谁!",'Description' => "昵称:" . $jsoninfo['nickname'] .
            " " . "性别:" . $sex . " " . "国家:" . $jsoninfo['country'] . " " . "省份:" .
            $jsoninfo['province'] . " " . "城市:" . $jsoninfo['city'],'PicUrl' => $jsoninfo['headimgurl'],
            'Url' => '');
          break;
        default:
          $content = '您发送的消息有误!';
          break;
        }
        if(is_array($content)) {
          if(isset($content[0]['PicUrl'])) {
            $result = $this->transmitInfo($object,$content);
          }
        } else {
          $result = $this->transmitText($object,$content);
        }
        return $result;
      }

       //接收事件推送
      private function receiveEvent($object)
      {
        $content = "";
        switch($object->Event)
        {
        case 'subscribe':
          $content = "欢迎关注*****!";
          break;
        case 'unsubscribe':
          $content = "取消关注";
          break;
        case 'CLICK':
          switch($object->EventKey)
          {
          case '我是谁':
            //获取access_token
            $access_token = $this->get_access_token($this->appid,$this->appsecret);

            //获取用户信息
            $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=" .
            $access_token . "&openid=" . $object->FromUserName . "&lang=zh_CN";
            $output = file_get_contents($url);
            $jsoninfo = json_decode($output,true);

            if($jsoninfo['sex'] == 1) {
              $sex = "男";
            } else if($jsoninfo['sex'] == 2) {
              $sex = "女";
            } else {
              $sex = "未知";
            }
            $content = array();
            $content[] = array('Title' => "我知道你是谁!",'Description' => "昵称:" . $jsoninfo['nickname'] .
              " " . "性别:" . $sex . " " . "国家:" . $jsoninfo['country'] . " " . "省份:" .
              $jsoninfo['province'] . " " . "城市:" . $jsoninfo['city'],'PicUrl' => $jsoninfo['headimgurl'],
              'Url' => '');
            break;
          default:
            $content = "该按钮暂时尚未添加事件!";
            break;
            }
        break;
        default:
          $content = "对不起,目前暂不受理此事件!";
          break;
        }
        if(is_array($content)) {
          if(isset($content[0]['PicUrl'])) {
            $result = $this->transmitInfo($object,$content);
          }
        } else {
          $result = $this->transmitText($object,$content);
        }
        return $result;
      }

      //发送文本消息
      private function transmitText($object,$content)
      {
        $textTpl = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[text]]></MsgType>
              <Content><![CDATA[%s]]></Content>
              </xml>";
          $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
        return $result;
      }

      //发送单图文消息:用户基本信息
      private function transmitInfo($object,$infoArray)
      {
        if(!is_array($infoArray)) {
          return;
            }
        $itemTpl = "<item>
              <Title><![CDATA[%s]]></Title>
              <Description><![CDATA[%s]]></Description>
              <PicUrl><![CDATA[%s]]></PicUrl>
              <Url><![CDATA[%s]]></Url>
              </item> ";
        $item_str = "";
        foreach ($infoArray as $item){
          $item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'],
          $item['Url']);
        }
        $infoTpl = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[news]]></MsgType>
              <Content><![CDATA[]]></Content>
              <ArticleCount>%s</ArticleCount>
              <Articles> $item_str</Articles>
              </xml>";
        $result = sprintf($infoTpl, $object->FromUserName, $object->ToUserName, time(),
        count($infoArray));
        return $result;
      }
    }

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  • 原文地址:https://www.cnblogs.com/wujuntian/p/4520138.html
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