微信公众号开发之（35）地图导航

地图导航

核心代码如下：

$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);$fromUsername = $postObj->FromUserName;$toUsername = $postObj->ToUserName;$MsgType=$postObj->MsgType;$latitude=$postObj->Location_X;$longitude =$postObj->Location_Y;$time = time();$textTpl = "<xml><ToUserName><![CDATA[%s]]></ToUserName><FromUserName><![CDATA[%s]]></FromUserName><CreateTime>%s</CreateTime><MsgType><![CDATA[news]]></MsgType><ArticleCount>1</ArticleCount><Articles><item><Title><![CDATA[导航]]></Title> <Description><![CDATA[点击后导航到我的公司]]></Description><PicUrl><![CDATA[]]></PicUrl><Url><![CDATA[%s]]></Url></item></Articles><FuncFlag>0</FuncFlag></xml>"; if($MsgType=="location"){$url="http://api./direction?origin=latlng:{$latitude},{$longitude}|name:九江&destination=latlng:23.378341,116.706653|name:我的公司&mode=driving&region=汕头&output=html&src=yourCompanyName|yourAppName";$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time,$url);echo $resultStr;}

index.php整体代码如下：

<?php/*** wechat php test*///define your tokendefine("TOKEN", "weixin");$wechatObj = new wechatCallbackapiTest();$wechatObj->responseMsg();class wechatCallbackapiTest{public function valid(){$echoStr = $_GET["echostr"];//valid signature , optionif($this->checkSignature()){echo $echoStr;exit;}}public function responseMsg(){//get post data, May be due to the different environments$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];//extract post dataif (!empty($postStr)){$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);$fromUsername = $postObj->FromUserName;$toUsername = $postObj->ToUserName;$MsgType=$postObj->MsgType;$latitude=$postObj->Location_X;$longitude =$postObj->Location_Y;$time = time();$textTpl = "<xml><ToUserName><![CDATA[%s]]></ToUserName><FromUserName><![CDATA[%s]]></FromUserName><CreateTime>%s</CreateTime><MsgType><![CDATA[news]]></MsgType><ArticleCount>1</ArticleCount><Articles><item><Title><![CDATA[导航]]></Title> <Description><![CDATA[点击后导航到我的公司]]></Description><PicUrl><![CDATA[]]></PicUrl><Url><![CDATA[%s]]></Url></item></Articles><FuncFlag>0</FuncFlag></xml>"; if($MsgType=="location"){$url="http://api./direction?origin=latlng:{$latitude},{$longitude}|name:九江&destination=latlng:23.378341,116.706653|name:我的公司&mode=driving&region=汕头&output=html&src=yourCompanyName|yourAppName";$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time,$url);echo $resultStr;}}}private function checkSignature(){$signature = $_GET["signature"];$timestamp = $_GET["timestamp"];$nonce = $_GET["nonce"]; $token = TOKEN;$tmpArr = array($token, $timestamp, $nonce);sort($tmpArr);$tmpStr = implode( $tmpArr );$tmpStr = sha1( $tmpStr );if( $tmpStr == $signature ){return true;}else{return false;}}}?>