文档介绍：<?php/*doufudiysupportCopyRight2014AllRightsReserved*/define("TOKEN","doufudiy");define("AppID","wx9b24c99e83238b21");define("EncodingAESKey","ww1bzDRcAy84UOGNaxL230A9tdBBOWgKQkYviIc6CFc");define("APP_SECRET","267980781c9addd54fcf811ea7acb59d");//改成自己的APPSECRET$wechatObj=newwechatCallbackapiTest();$wechatObj->responseMsg();classwechatCallbackapiTest{private$app_id;private$app_secret;publicfunctionvalid(){$echoStr=$_get["echostr"];//validsignature,optionif($this->checkSignature()){ob_clean();echo$echoStr;exit;}}functiontxt($fu,$tu,$content,$flag=0){$tpl="<xml><ToUserName><![CDATA[".$fu."]]></ToUserName><FromUserName><![CDATA[".$tu."]]></FromUserName><CreateTime>".$_SERVER['REQUEST_TIME']."</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[".$content."]]></Content><FuncFlag>".$flag."</FuncFlag></xml>";echo$tpl;}functionnews($fu,$tu,$data,$flag=0){$num=count($data);if($num>1){$add=$this->news_add($data);$tpl="<xml><ToUserName><![CDATA[".$fu."]]></ToUserName><FromUserName><![CDATA[".$tu."]]></FromUserName><CreateTime>".$_SERVER['REQUEST_TIME']."</CreateTime><MsgType><![CDATA[news]]></MsgType><Content><![CDATA[%s]]></Content><ArticleCount>".$num."</ArticleCount><Articles>".$add."</Articles><FuncFlag>".$flag."</FuncFlag></xml>";echo$tpl;}else{$tpl="<xml><ToUserName><![CDATA[".$fu."]]></ToUserName><FromUserName><![CDATA[".$tu."]]></FromUserName><CreateTime>".$_SERVER['REQUEST_TIME']."</CreateTime><MsgType><![CDATA[news]]></MsgType><Content><![CDATA[%s]]></Content><ArticleCount>1</ArticleCount><Articles><item><Title><![CDATA[".$data[0]['title']."]]></Title><Description><![CDATA[".$data[0]['intro']."]]></Description><Picurl><![CDATA[".$data[0]['pic']."]]></Picurl><url><![CDATA[".$data[0]['url']."]]></Url></item></Articles><FuncFlag>".$flag."</FuncFlag></xml>";echo$tpl;}}functionnews_add($data){$add="";foreach($dataas$k){$add.="<item><Title><![CDATA[".$k['title']."]]></Title><Description><![CDATA[".$k['intro']."]]></Description><PicUrl><![CDATA[".$k['pic']."]]>