This article mainly shares a complete WeChat developmentphp code, which has certain reference value. Interested friends can refer to it

The examples in this article are shared with everyone. I developed the php code for WeChat for your reference. The specific content is as follows

<?php
  //封裝成一個微信接口類
 
  class WeixinApi
  {
    private $appid;
    private $appsecret; 
 
    //構造方法 初始化賦值
    public function construct($appid="",$appsecret="")
    {
      $this->appid = $appid;
      $this->appsecret = $appsecret;
    }
 
    //驗證服務器地址有效性
    public function valid()
    {
      if($this->checkSignature())
      {
        $echostr = $_GET[&#39;echostr&#39;];//隨機的字符串
        return $echostr;
      }
      else
      {
        return "Error";
      }
    }
 
    //檢查簽名
    private function checkSignature()
    {
      //一、接收微信服務器GET方式提交過來的4個參數(shù)數(shù)據(jù)
 
      $signature = $_GET[&#39;signature&#39;];//微信加密簽名
 
      $timestamp = $_GET[&#39;timestamp&#39;];//時間戳
 
      $nonce = $_GET[&#39;nonce&#39;];//隨機數(shù)
 
      //二、加密/校驗過程
      // 1. 將token、timestamp、nonce三個參數(shù)進行字典序排序；
      // bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) 對數(shù)組排序 
       
      $tmpArr = array(TOKEN,$timestamp,$nonce);//將上面三個參數(shù)放到一個數(shù)組里面
      sort($tmpArr,SORT_STRING);
 
      // 2. 將三個參數(shù)字符串拼接成一個字符串進行sha1加密；
      $tmpStr = implode($tmpArr); //將數(shù)組轉化成字符串
 
      $signatureStr = sha1($tmpStr);
 
      // 3. 開發(fā)者獲得加密后的字符串與signature對比。
      if($signatureStr == $signature)
      {
        return true;
      }
      else
      {
        return false;
      }
    }
 
    //響應消息
    public function responseMsg()
    {
      //接收微信服務器發(fā)送POST請求到開發(fā)者服務器，攜帶的XML數(shù)據(jù)包
      $postData = $GLOBALS[&#39;HTTP_RAW_POST_DATA&#39;];
 
      //處理xml數(shù)據(jù)包
      $xmlObj = simplexml_load_string($postData,"SimpleXMLElement",LIBXML_NOCDATA);
 
      if(!$xmlObj)
      {
        echo "";
        exit;
      }
 
      //獲取接收消息中的參數(shù)內容
      $toUserName = $xmlObj->ToUserName;//開發(fā)者微信號
      $fromUserName = $xmlObj->FromUserName;//發(fā)送方的微信號（openid）
      $msgType = $xmlObj->MsgType;//消息類型
      switch ($msgType) {
        //接收文本消息
        case &#39;text&#39;:
          //獲取文本消息的關鍵字
          $keyword = $this->receiveText($xmlObj); 
          //進行關鍵字回復
          switch($keyword)
          {
            case "w001":
            case "W001":
              return $this->replyText($xmlObj,"Hi~你好");
              break;
            case "w002":
            case "W002":
              return $this->replyText($xmlObj,"Hi~尷尬了");
              break;
            case "笑話":
              $key = "dee9ebc68fd5a61f67286063932afe56";
              return $this->replyNews($xmlObj,$this->joke_text($key));
              break;
            default:
              $key = "dee9ebc68fd5a61f67286063932afe56";
              return $this->replyNews($xmlObj,$this->joke_text($key));
              break;
          }    
          break;
        //接收圖片消息
        case &#39;image&#39;:
          return $this->receiveImage($xmlObj);
          break;
        //接收事件推送
        case &#39;event&#39;:
          return $this->receiveEvent($xmlObj);
          break;
      }      
    }
 
    //接收事件推送
    public function receiveEvent($obj)
    {
      //接收事件類型
      $event = $obj->Event;
      switch ($event)
      {
        //關注事件
        case &#39;subscribe&#39;:
          //下發(fā)歡迎消息
          $newsArr = array(
                  array(
                    "Title"=>"做有價值的頭條資訊！",
                    "Description"=>"把握價值頭條資訊，日常更加有談資呢！",
                    "PicUrl"=>"http://jober.applinzi.com/news/img/news.png",
                    "Url"=>"http://jober.applinzi.com/news/index.php"
                  )                
                );
          //回復圖文消息
          return $this->replyNews($obj,$newsArr); 
          break;
        //取消關注事件
        case &#39;unsubscribe&#39;:
          //賬號的解綁操作等等
          break;
        //自定義菜單推送CLICK事件
        case &#39;CLICK&#39;:
          $eventKey = $obj->EventKey;//獲取事件KEY值，與自定義菜單接口中KEY值對應
          switch ($eventKey) 
          {
            case &#39;old&#39;:
   
              $weixinArr = $this->history("da675ebc6a0d72920dca3f676122a693");
              $weixinArr = array_slice($weixinArr, 0,5);
              $newsArr = array();
 
              foreach ($weixinArr as $item) 
              {
                $newsArr = array(array(
                          "Title" => $item[&#39;Description&#39;],
                          "Description" => $item[&#39;Title&#39;],
                          "PicUrl" => "http://1.jober.applinzi.com/news/img/2.jpg",
                          "Url" => "http://www.todayonhistory.com/"                          
                        ));
              }
              return $this->replyNews($obj,$newsArr);
              break;
          }
        break;
      }
    }
 
    //接收文本消息
    public function receiveText($obj)
    {
      $content = trim($obj->Content);//文本消息的內容
      return $content;
    }
 
    //接收圖片消息
    public function receiveImage($obj)
    {
      $picUrl = $obj->PicUrl;//圖片的鏈接
      $mediaId = $obj->MediaId;//圖片消息媒體id
      return $this->replyImage($obj,$mediaId);
    }
 
    //回復圖片消息
    public function replyImage($obj,$mediaId)
    {
      $replyXml = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[image]]></MsgType>
              <Image>
                <MediaId><![CDATA[%s]]></MediaId>
              </Image>
            </xml>";
      return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$mediaId);
           
    }
 
    //回復文本消息
    public function replyText($obj,$content)
    {
      $replyXml = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[text]]></MsgType>
              <Content><![CDATA[%s]]></Content>
            </xml>";
      return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$content);
    }
     
    //回復圖文消息
    public function replyNews($obj,$newsArr)
    {
      //判斷是否為數(shù)組類型
      if(!is_array($newsArr))
      {
        return;
      }
      // 判斷數(shù)組是否為空數(shù)組
      if(!$newsArr)
      {
        return;
      }
      $itemStr = "";
      //定義item模板
      $itemXml = "<item>
              <Title><![CDATA[%s]]></Title> 
              <Description><![CDATA[%s]]></Description>
              <PicUrl><![CDATA[%s]]></PicUrl>
              <Url><![CDATA[%s]]></Url>
            </item>";
      foreach($newsArr as $item)
      {
        $itemStr .= sprintf($itemXml,$item[&#39;Title&#39;],$item[&#39;Description&#39;],$item[&#39;PicUrl&#39;],$item[&#39;Url&#39;]);
      }
      $replyXml = "<xml>
              <ToUserName><![CDATA[%s]]></ToUserName>
              <FromUserName><![CDATA[%s]]></FromUserName>
              <CreateTime>%s</CreateTime>
              <MsgType><![CDATA[news]]></MsgType>
              <ArticleCount>".count($newsArr)."</ArticleCount>
              <Articles>".$itemStr."</Articles>
            </xml>"; 
      return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time());     
    }
 
    //封裝https請求（GET和POST）
   
    protected function https_request($url,$data=null)
    {
      //1、初始化curl
      $ch = curl_init();
 
      //2、設置傳輸選項
      curl_setopt($ch, CURLOPT_URL, $url);//請求的url地址
      curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//將請求的結果以文件流的形式返回
       
      if(!empty($data))
      {
        curl_setopt($ch,CURLOPT_POST,1);//請求POST方式
        curl_setopt($ch,CURLOPT_POSTFIELDS,$data);//POST提交的內容
      }
 
      //3、執(zhí)行請求并處理結果
      $outopt = curl_exec($ch);
 
      //把json數(shù)據(jù)轉化成數(shù)組
      $outoptArr = json_decode($outopt,TRUE);
 
      //4、關閉curl
      curl_close($ch);
 
      //如果返回的結果$outopt是json數(shù)據(jù)，則需要判斷一下
      if(is_array($outoptArr))
      {  
        return $outoptArr;
      }
      else
      {
        return $outopt;
      }      
    }
 
    public function juhe_weixin($key,$type)
    {
      $url ="http://v.juhe.cn/toutiao/index?type={$type}&key={$key}";
      $result = $this->https_request($url);
      if($result[&#39;error_code&#39;] == 0)
      {
        return $result[&#39;result&#39;][&#39;data&#39;];
      }
      else
      {
        return array();
      }
    }
 
    //聚合數(shù)據(jù)-獲取最新趣圖
    public function joke_text($key,$pagesize=10)
    {
      $url = "http://japi.juhe.cn/joke/img/text.from?key={$key}&pagesize={$pagesize}";
      $jokeArr = $this->https_request($url);
      $resultArr = $jokeArr[&#39;result&#39;][&#39;data&#39;];
      // $content = $resultArr[0][&#39;content&#39;];
      // return $this->replyText($xmlObj,$content);
       
      $newsArr = array();
      //判斷笑話接口是否獲取數(shù)據(jù)
      if($jokeArr[&#39;error_code&#39;] == 0)
      {
        foreach($resultArr as $item)
        {
          $newsArr[] = array(
                "Title"=>$item[&#39;content&#39;],
                "Description"=>$item[&#39;updatetime&#39;],
                "PicUrl"=>$item[&#39;url&#39;],
                "Url"=>$item[&#39;url&#39;]
              );
        }        
      }
      return $newsArr;
    }
 
 
    //聚合數(shù)據(jù)-獲取歷史上的今天
       
    public function history($key)
    {
      $m = idate(&#39;m&#39;);
      $d = idate(&#39;d&#39;);
      $day = "{$m}/{$d}";
     
      $url = "http://v.juhe.cn/todayOnhistory/queryEvent.php?key={$key}&date={$day}";
      $historyArr = $this->https_request($url);
      $resultArr = $historyArr[&#39;result&#39;];
      // $content = $resultArr[&#39;title&#39;];
      // return $this->replyText($xmlObj,$content);
       
      $newsArr = array();
      //判斷接口是否獲取數(shù)據(jù)
      if($jokeArr[&#39;error_code&#39;] == 0)
      {
        foreach($resultArr as $item)
        {
          $newsArr[] = array(
                "Title"=>$item[&#39;title&#39;],
                "Description"=>$item[&#39;date&#39;],
                "PicUrl"=>"",
                "Url"=>""
              );
        }        
      }
      return $newsArr;
    }
 
    public function fund($key)
    {
 
      $url = "http://japi.juhe.cn/jingzhi/query.from?key={$key}";
      $fundArr = $this->https_request($url);
      $resultArr = $fundArr[&#39;result&#39;];
      // $content = $resultArr[&#39;title&#39;];
      // return $this->replyText($xmlObj,$content);
       
      $newsArr = array();
      //判斷接口是否獲取數(shù)據(jù)
      if($jokeArr[&#39;error_code&#39;] == 0)
      {
        foreach($resultArr as $item)
        {
          $newsArr[] = array(
                "Title"=>$item[&#39;day&#39;],
                "Description"=>$item[&#39;title&#39;],
                "PicUrl"=>"",
                "Url"=>"http://www.baidu.com"
              );
        }        
      }
      return $newsArr;
    }
 
    /**
      *獲取基礎支持里面的接口調用憑證access_token并緩存access_token
      *@return access_token string 接口憑證
    **/
    public function getAccessToken()
    {
      //獲取memcache緩存的access_token
      $access_token = $this->_memcache_get("access_token");
      //如果緩存的access_token失效
      if(!$access_token)
      {  
        //如果失效調用獲取接口憑證來獲取access_token
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}";
        $outoptArr = $this->https_request($url);
        if(!isset($outoptArr[&#39;errcode&#39;]))
        {
          //memcache緩存access_token
          $this->_memcache_set("access_token",$outoptArr[&#39;access_token&#39;],7000);
          return $outoptArr[&#39;access_token&#39;];
        }
      }  
      return $access_token;
    }
 
    //初始化memcache
    private function _memcache_init()
    {
      $mmc = new Memcache;
      $ret = $mmc -> connect();
      if ($ret == false) 
      {
        return;
      } 
      return $mmc;
    }
 
    //設置memcache
    private function _memcache_set($key,$value,$time=0)
    {
      $mmc = $this->_memcache_init();
      $mmc -> set($key,$value,0,$time);
    }
 
    //獲取memcahce
    private function _memcache_get($key)
    {
      $mmc = $this->_memcache_init(); 
      return $mmc -> get($key);  
    }
 
    //自定義菜單創(chuàng)建
 
    public function menu_create($data)
    {
      $access_token = $this->getAccessToken();
      //自定義菜單創(chuàng)建接口地址
      $url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={$access_token}";
      return $this->https_request($url,$data);
    }
 
    //自定義菜單刪除
    public function menu_delete()
    {
      $access_token = $this->getAccessToken();
      $url = "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token={$access_token}";
      return $this->https_request($url);
    }
  }
?>

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