PHP微信开发之根据用户回复关键词\位置返回附近信息

<?php

/**根据一组经纬度查找附近2公里以内的关键字**/

header('Content-type:text/html;charset=utf-8');

//--------第一步：转换经纬度----
//参考链接：http://developer.baidu.com/map/index.php?title=webapi/guide/changeposition

$Location_X = 23.134521;
$Location_Y = 113.358803;

$url = "http://api.map.baidu.com/geoconv/v1/?coords=$Location_X,$Location_Y&from=3&to=5&ak=这里填写你的apikey";

$res = file_get_contents($url);
$res = json_decode($res, true);

//用户发送腾讯的soso地图位置信息经过转换之后，得到百度地图的经纬度
$x = $res['result'][0]['x'];
$y = $res['result'][0]['y'];

//---------第二步：根据经纬度和关键词获得附近的信息----------
//参考链接：http://developer.baidu.com/map/index.php?title=webapi/guide/webservice-placeapi
$url = "http://api.map.baidu.com/place/v2/search?ak=这里填写你的apikey&output=json&query=" . urlencode("饭店") . "&page_size=10&page_num=0&scope=2&location=$x,$y&radius=2000";
$res = file_get_contents($url);
$res = json_decode($res, true);

// echo "<pre>";
// print_r($res);
// echo "</pre>";

 

//提取所需的信息
foreach($res['results'] as $k=>$v){
 $arr[$k]['name'] = $v['name'];
 $arr[$k]['address'] = $v['address'];
 $arr[$k]['img_url'] = 'http://misakaqnxt-public.stor.sinaapp.com/click.png';
 $arr[$k]['detail_url'] = isset($v['detail_info']['detail_url'])?$v['detail_info']['detail_url']:'';
}

 echo "<pre>";
 print_r($arr);
 echo "</pre>"; 

elseif($which == "寻找"){

        $find = str_replace($which, "", $keyword);

        //调用新浪云的KVDB服务
        $kv = new SaeKV();
        $kv->init();
        $kv->set('find', $find);

        $contentStr = "选择表情旁边的'+'，发送位置，即可查找你要找的地方";
        $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
        echo $resultStr;
        exit();

      }

 elseif($postObj->MsgType == 'location'){
          /**
           * 如果是收到了地理位置消息，则返回附近的饭店
           */

          //--------第一步：转换经纬度-------
          //参考链接：http://developer.baidu.com/map/index.php?title=webapi/guide/changeposition
          $Location_X = $postObj->Location_X;
          $Location_Y = $postObj->Location_Y;
          
          $url = "http://api.map.baidu.com/geoconv/v1/?coords=$Location_X,$Location_Y&from=3&to=5&ak=这里填写你的apikey";
          
          $res = file_get_contents($url);
          $res = json_decode($res, true);

          //用户发送腾讯的soso地图位置信息经过转换之后，得到百度地图的经纬度
          $x = $res['result'][0]['x'];
          $y = $res['result'][0]['y'];

          //---------第二步：根据经纬度和关键词获得附近的信息----------
          $kv = new SaeKV();
          // 初始化KVClient对象
          $kv->init();
          
          $url = "http://api.map.baidu.com/place/v2/search?ak=这里填写你的apikey&output=json&query=" . urlencode($kv->get('find')) . "&page_size=10&page_num=0&scope=2&location=$x,$y&radius=2000";
          $res = file_get_contents($url);
          $res = json_decode($res, true);
          
          //提取信息
          foreach($res['results'] as $k=>$v){
            $arr[$k]['name'] = $v['name'];
            $arr[$k]['address'] = $v['address'];
            $arr[$k]['img_url'] = 'http://misakaqnxt-public.stor.sinaapp.com/click.png';
            $arr[$k]['detail_url'] = isset($v['detail_info']['detail_url'])?$v['detail_info']['detail_url']:'';
          }

          //--------第三步：拼接XML字符串--------
          $head = "<xml>
          <ToUserName><![CDATA[%s]]></ToUserName>
          <FromUserName><![CDATA[%s]]></FromUserName>
          <CreateTime>%s</CreateTime>
          <MsgType><![CDATA[news]]></MsgType>
          <ArticleCount>10</ArticleCount>
          <Articles>";

          $items = "";
          foreach($arr as $v){
            $items .= "<item>
            <Title><![CDATA[" . $v['name'] ."：". $v['address'] . "]]></Title>
            <Description><![CDATA[" . $v['address'] . "]]></Description>
            <PicUrl><![CDATA[" . $v['img_url'] . "]]></PicUrl>
            <Url><![CDATA[" . $v['detail_url'] . "]]></Url>
            </item>";
          }

          $foot = "</Articles></xml>";

          $res = $head . $items . $foot;
          
          $resultStr = sprintf($res, $fromUsername, $toUsername, $time);
          echo $resultStr;
          exit();


}