php实现基于微信公众平台开发SDK(demo)扩展的方法

前端技术 2023/09/09 PHP

本文实例讲述了php实现基于微信公众平台开发SDK(demo)扩展的方法。分享给大家供大家参考。具体分析如下：

该扩展基于官方的微信公众平台SDK,这里只做了简单地封装,实现了一些基本的功能(如天气查询,翻译,自动聊天机器人,自定义菜单接口)仅供学习之用.代码如下:

复制代码 代码如下:
define(\"TOKEN\", \"xingans\");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
   //签名验证公共接口
   public function valid()
   {
       $echoStr = $_GET[\"echostr\"];
       if($this->checkSignature()){
           echo $echoStr;
           exit;
       }
   }
 
   //主入口处理函数
   public function responseMsg()
   {
       $postStr = $GLOBALS[\"HTTP_RAW_POST_DATA\"];
       if (!emptyempty($postStr)){
           $postObj = simplexml_load_string($postStr, \'SimpleXMLElement\', LIBXML_NOCDATA);
           $msgType=trim($postObj->MsgType);
          
           switch($msgType){
               case \'text\':
                   $resultStr=$this->handleText($postObj);
                   break;
               case \'event\':
                   $resultStr=$this->handleEvent($postObj);
                   break;
               default:
                   $resultStr=$this->handleDefault($postObj);
                   break;
           }
           echo $resultStr;
          
       }else {
           echo \"Error\";
           exit;
       }
   }
  
   //处理文本消息
      private function handleText($obj){
          $keyword=trim($obj->Content);
          if(preg_match(\'/天气/\',$keyword)){
              $contentStr=$this->handleWeather($obj);
          }elseif(preg_match(\'/翻译/\',$keyword)){
              $contentStr=$this->handleTranslation($obj);
          }else{
              $contentStr=$this->handleChat($obj);
          }
          return $this->handleStr($obj,$contentStr);
      }
     
      //处理天气
      private function handleWeather($obj){
          $keyword=mb_substr($obj->Content,-2,2,\'utf-8\');
          $zone=mb_substr($obj->Content,0,-2,\'utf-8\');
          if($keyword==\'天气\' && !emptyempty($zone)){
              $zoneArr=json_decode(file_get_contents(\'http://api.k780.com:88/?app=weather.city&format=json\'),true);
              $zoneArr=$zoneArr[\'result\'];
              $cityId=\'\';
              foreach($zoneArr as $value){
                  if($zone==$value[\'citynm\']){
                      $cityId=$value[\'weaid\'];
                      break;
                  }
              }
             
              if(!emptyempty($cityId)){
                  $data=file_get_contents(\"http://api.k780.com:88/?app=weather.today&weaid=$cityId&appkey=10638&sign=3736578f099375665f9f141a6326b757&format=json\");
                  $data=json_decode($data);
                  $contentStr=\"今天是:\".$data->result->days.\",\".$data->result-> week.\",\".$data->result->citynm.\"天气:\".$data->result->weather.\"n温度:\".$data->result->temperature.\",
                  \".$data->result->wind_direction.\",\".$data->result->wind_power.\", 最低温度:\".$data->result->temp_low.\",最高温度:\".$data->result->temp_high;
              }else{
                  $contentStr=\'找不到输入的城市!\';
              }   
          }else{
              $contentStr=\'输入的查询格式不正确!\';
          }
          return $contentStr;
      }
     
      //处理翻译
      private function handleTranslation($obj){
       $keyword=mb_substr($obj->Content,0,2,\'utf-8\');
       $words=mb_substr($obj->Content,2,220,\'utf-8\');
       if($keyword==\'翻译\' && !emptyempty($words)){
           $data=file_get_contents(\'http://fanyi.youdao.com/openapi.do?keyfrom=zfsblog&key=364295447&type=data&doctype=json&version=1.1&q=\'.urlencode($words));       
           $data=json_decode($data,true);
          
           switch($data[\'errorCode\']){
               case \'0\':
                   $contentStr=$data[\'translation\'][0];
                   break;
               case \'20\':
                   $contentStr=\'要翻译的文本过长\';
                   break;
               case \'30\':
                   $contentStr=\'无法进行有效的翻译\';
                   break;
               case \'40\':
                   $contentStr=\'不支持的语言类型\';
                   break;
               case \'50\':
                   $contentStr=\'无效的key\';
                   break;
               default:
                   $contentStr=\'Error\';
                   break;
           }
       }else{
           $contentStr=\'输入的翻译格式不正确!\';
       }
       return $contentStr;
      }
     
      //处理聊天信息
      private function handleChat($obj){
       $keywords=$obj->Content;
       $curlPost=array(\"chat\"=>$keywords);
       $ch = curl_init();//初始化curl
       curl_setopt($ch, CURLOPT_URL,\'http://www.xiaojo.com/bot/chata.php\');//抓取指定网页
       curl_setopt($ch, CURLOPT_HEADER, 0);//设置header
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
       curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
       curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
       $data = curl_exec($ch);//运行curl
       curl_close($ch);
      
       if(!emptyempty($data)){
           $contentStr=$data;
       }else{
           $ran=rand(1,5);
          
           switch($ran){
               case 1:
                   $contentStr= \"小九今天累了，明天再陪你聊天吧\";
                   break;
               case 2:
                   $contentStr= \"小九睡觉喽~~\";
                   break;
               case 3:
                   $contentStr= \"呼呼~~呼呼~~\";
                   break;
               case 4:
                   $contentStr= \"你话好多啊，不跟你聊了\";
                   break;
               case 5:
                   $contentStr= \"你话好多啊，不跟你聊了\";
                   break;
           }
       }
       return $contentStr;
      }
     
      //创建自定义菜单
      public function createMenu($data,$token){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, \"https://api.weixin.qq.com/cgi-bin/menu/create?access_token=\".$token);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, \"POST\");
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_USERAGENT, \'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)\');
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $result = curl_exec($ch);     
        curl_close($ch);
        return $result;
      }
     
      //查询自定义菜单
   function getMenu($token){
       $url=\"https://api.weixin.qq.com/cgi-bin/menu/get?access_token=$token\";
       $ch = curl_init($url);
       curl_setopt($ch, CURLOPT_RETURNTRANSFER,true) ; //获取数据返回
       curl_setopt($ch, CURLOPT_BINARYTRANSFER,true) ; //在启用 CURLOPT_RETURNTRANSFER 时候将获取数据返回   
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,false);
       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,false);
       return $output = curl_exec($ch);       
      }
     
      //删除自定义菜单
      public function deleteMenu($token){
       $url=\"https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=\".$token;
       $ch = curl_init();
       curl_setopt($ch, CURLOPT_URL, $url);
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
       $result = curl_exec($ch);
       curl_close($ch);
       return $result;
      }

      //处理事件消息
      private function handleEvent($obj){
          $content=\'\';
          switch($obj->Event){
              case \'subscribe\':
                  $content.=\"welcome-欢迎关注该公众号号!\";
                  break;
              case \'unsubscribe\':
                  $content.=\"感谢您一直以来对该公众号的关注,再见!\";
                  break;
              default:
                  $content.=\"\";
                  break;
          }
          return $this->handleStr($obj,$content);
      }
     
      //处理回复消息字符串
      private function handleStr($obj,$content=\'\',$flag=0){
       $textTpl = \"\";
       return sprintf($textTpl, $obj->FromUserName, $obj->ToUserName, time(), $content,$flag);
      }
  
   //签名验证函数
   private function checkSignature()
   {
       $signature = $_GET[\"signature\"];
       $timestamp = $_GET[\"timestamp\"];
       $nonce = $_GET[\"nonce\"];   
       $token = TOKEN;
       $tmpArr = array($token, $timestamp, $nonce);
       sort($tmpArr, SORT_STRING);
       $tmpStr = implode( $tmpArr );
       $tmpStr = sha1( $tmpStr );
       if( $tmpStr == $signature ){
           return true;
       }else{
           return false;
       }
   }
}

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