微信开发PHP代码最近店铺

<?php
/**
  * wechat php test
  */

//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
    public function valid()
    {
        $echoStr = $_GET["echostr"];

        //valid signature , option
        if($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 data
        if (!empty($postStr)){

                $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
                $fromUsername = $postObj->FromUserName;
                $toUsername = $postObj->ToUserName;
                $type = $postObj->MsgType;
                $customrevent = $postObj->Event;
                $latitude  = $postObj->Location_X;
                $longitude = $postObj->Location_Y;
                $keyword = trim($postObj->Content);
                $time = time();
                $textTpl = "<xml>
                            <ToUserName><![CDATA[%s]]></ToUserName>
                            <FromUserName><![CDATA[%s]]></FromUserName>
                            <CreateTime>%s</CreateTime>
                            <MsgType><![CDATA[%s]]></MsgType>
                            <Content><![CDATA[%s]]></Content>
                            <FuncFlag>0</FuncFlag>
                            </xml>";             
                switch ($type)
            {   case "event";
                if ($customrevent=="subscribe")
                    {$contentStr = "感谢你的关注\n回复1查看联系方式\n回复2查看最新资讯\n回复3查看法律文书";}
                break;
                case "image";
                $contentStr = "你的图片很棒！";
                break;
                case "location";
                  $geourl1="http://api.map.baidu.com/telematics/v2/distance?waypoints=116.681837,23.353299;{$longitude},{$latitude}&ak=1a3cde429f38434f1811a75e1a90310c";
                 $apistr1=file_get_contents($geourl1);
                 $apiobj1=simplexml_load_string($apistr1);
                 $distanceobj1=$apiobj1->results->distance;
                 $distanceint1=intval($distanceobj1); //第一个店铺的距离
                 $geourl2="http://api.map.baidu.com/telematics/v2/distance?waypoints=116.756091,23.46596;{$longitude},{$latitude}&ak=1a3cde429f38434f1811a75e1a90310c";
                 $apistr2=file_get_contents($geourl2);
                 $apiobj2=simplexml_load_string($apistr2);
                 $distanceobj2=$apiobj2->results->distance;
                 $distanceint2=intval($distanceobj2); //第二个店铺的距离
                 $geourl3="http://api.map.baidu.com/telematics/v2/distance?waypoints=116.372831,23.549993;{$longitude},{$latitude}&ak=1a3cde429f38434f1811a75e1a90310c";
                 $apistr3=file_get_contents($geourl3);
                 $apiobj3=simplexml_load_string($apistr3);
                 $distanceobj3=$apiobj3->results->distance;
                 $distanceint3=intval($distanceobj3);//第三个店铺的距离
                 $mindistanceint=min($distanceint1,$distanceint2,$distanceint3);//最近的店铺距离
                if($mindistanceint==$distanceint1){
                $contentStr = "离你最近的店铺有{$mindistanceint}米远，位置是1号路";}
                elseif ($mindistanceint==$distanceint2){
                $contentStr = "离你最近的店铺有{$mindistanceint}米远，位置是2号路";}
                else{
                $contentStr = "离你最近的店铺有{$mindistanceint}米远，位置是3号路";}
                break;
                case "link" ;
                $contentStr = "你的链接有病毒吧！";
                break;
                case "text";
                  switch($keyword)
                  {
                    case "1";                               
                    $contentStr = "联系方式：汕头市金平区华乾大厦703,1341702551，          email：[email protected]";
                    break;
                    case "2";
                    $contentStr = "最新资讯：《汕头市环境违法行为举报奖励办法》将于8月1日实施。";
                    break;
                    case "3";
                    $contentStr = "31离婚协议\n32租房合同\n33交通事故协议书";
                    break;
                    default;
                    $contentStr ="hi";
                 }
                 break;                 
            default;
            $contentStr ="此项功能尚未开发";   
            }
                $msgType="text";
                $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
                echo $resultStr;


        }else {
            echo "";
            exit;
        }
    }

    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;
        }
    }
}

?>