[转]微信公众平台开发__导航

1. <?php  


2.   


3. //define your token  


4. define("TOKEN", "wechatnow");  


5. $wechatObj = new wechatCallbackapiTest();  


6. $wechatObj->responseMsg();  


7.   


8. class wechatCallbackapiTest  


9. {  


10.     public function valid()  


11.     {  


12.         $echoStr = $_GET["echostr"];  


13.   


14.         //valid signature , option  


15.         if($this->checkSignature()){  


16.             echo $echoStr;  


17.             exit;  


18.         }  


19.     }  


20.   


21.     public function responseMsg()  


22.     {  


23.         //get post data, May be due to the different environments  


24.         $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];  


25.   


26.         //extract post data  


27.         if (!empty($postStr)){  


28.                   


29.               $postObj = simplexml_load_string($postStr, ‘SimpleXMLElement‘, LIBXML_NOCDATA);  


30.                 $fromUsername = $postObj->FromUserName;  


31.                 $toUsername = $postObj->ToUserName;  


32.                 $MsgType=$postObj->MsgType;  


33.         $latitude=$postObj->Location_X;  


34.         $longitude =$postObj->Location_Y;  


35.                 $time = time();  


36.                 $textTpl = "<xml>  


37.                             <ToUserName><![CDATA[%s]]></ToUserName>  


38.                             <FromUserName><![CDATA[%s]]></FromUserName>  


39.                             <CreateTime>%s</CreateTime>  


40.                             <MsgType><![CDATA[news]]></MsgType>  


41.                              <ArticleCount>1</ArticleCount>  


42.                              <Articles>  


43.                              <item>  


44.                              <Title><![CDATA[导航]]></Title>   


45.                              <Description><![CDATA[点击后导航到华师]]></Description>  


46.                              <PicUrl><![CDATA[]]></PicUrl>  


47.                              <Url><![CDATA[%s]]></Url>  


48.                             </item>  


49.                             </Articles>  


50.                             <FuncFlag>0</FuncFlag>  


51.                             </xml>";                    


52.                 if($MsgType=="location")  


53.                   


54.                 {  


55.                    


56.                  $url="http://api.map.baidu.com/direction?origin=latlng:{$latitude},{$longitude}|name:你的位置&destination=latlng:23.14123802754,113.34233164787202|name:我的学校&mode=transit?ion=广州&output=html&src=yourCompanyName|yourAppName";//调用百度地图的api  


57.                     $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time,$url);  


58.                     echo $resultStr;  


59.                 }  


60.   


61.         }  


62.     }  


63.           


64.     private function checkSignature()  


65.     {  


66.         $signature = $_GET["signature"];  


67.         $timestamp = $_GET["timestamp"];  


68.         $nonce = $_GET["nonce"];      


69.                   


70.         $token = TOKEN;  


71.         $tmpArr = array($token, $timestamp, $nonce);  


72.         sort($tmpArr);  


73.         $tmpStr = implode( $tmpArr );  


74.         $tmpStr = sha1( $tmpStr );  


75.           


76.         if( $tmpStr == $signature ){  


77.             return true;  


78.         }else{  


79.             return false;  


80.         }  


81.     }  


82. }  


83.   


84. ?>  

源文地址：http://blog.csdn.net/zhihang527548263/article/details/12684813