<xml>
<ToUserName><![CDATA[gh_680bdefc8c5d]]></ToUserName>
<FromUserName><![CDATA[oIDrpjqASyTPnxRmpS9O_ruZGsfk]]></FLACFromUserName>
<CreateTime>1359036619</CreateTime>
<MsgType><![CDATA[location]]></MsgType>
<Location_X>22.539968</Location_X>
<Location_Y>113.954980</Location_Y>
<Scale>16</Scale>
<Label><![CDATA[中国广东省深圳市南山区华侨城深南大道9789号 邮政编码: 518057]]></Label>
<MsgId>5837017832671832047</MsgId>
</xml>

 ToUserName 消息接收方微信号，一般为公众平台账号微信号FromUserName 消息发送方微信号CreateTime 消息创建时间MsgType 消息类型，地理位置为locationLocation_X 地理位置纬度Location_Y 地理位置经度Scale 地图缩放大小Label 地理位置信息MsgId 消息ID号

http://api.map.baidu.com/place/v2/search?ak=MgBALVVeCd8THVBi6gPdvsvG&output=json&query=%E9%93%B6%E8%A1%8C&page_size=5&page_num=0&scope=2&location=39.915,116.404&radius=2000&filter=sort_name:distance

class baiduMapClient
{    private $api_server_url;private $auth_params;public function __construct(){$this->api_server_url = "http://api.map.baidu.com/";$this->auth_params = array();$this->auth_params['key'] = "401f9a693dd267dd9a4661ec0895fb20";$this->auth_params['output'] = "json";}public function Geocoding_coordinate_address($location) {   return $this->call("geocoder", array("location" => $location));}//http://api.map.baidu.com/place/search?&query=眼镜&location=39.915,116.404&radius=3000&output=json&key=37492c0ee6f924cb5e934fa08c6b1676public function Place_search($query, $location, $radius) {return $this->call("place/search", array("query" => $query, "location" => $location, "radius" => $radius));}protected function call($method, $params = array()){$headers = array("User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20100101 Firefox/14.0.1","Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8","Accept-Language: en-us,en;q=0.5",//"Accept-Encoding: gzip, deflate","Referer: http://developer.baidu.com/");$params = array_merge($this->auth_params, $params);$url = $this->api_server_url . "$method?".http_build_query($params);if (DEBUG_MODE){echo "REQUEST: $url" . "\n";}$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);//curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); $data = curl_exec($ch);curl_close($ch);    $result = null;if (!empty($data)){if (DEBUG_MODE){echo "RETURN: " . $data . "\n";}$result = json_decode($data);}else{echo "cURL Error:". curl_error($ch);}return $result;}
}

function catchEntitiesFromLocation($entity, $x, $y, $radius)
{   $mapObj = new baiduMapClient();$search = $mapObj->Place_search($entity, $x.",".$y, $radius);$results = $search->results;for ($i = 0; $i < count($results); $i++) {$distance = getDistance($x, $y, $results[$i]->location->lat, $results[$i]->location->lng);$shopSortArrays[$distance] = array("Title"=>"【".$results[$i]->name."】<".$distance."M>".$results[$i]->address.(isset($results[$i]->telephone)?" ".$results[$i]->telephone:""),"Description"=>"", "PicUrl"=>"", "Url"=>"");}ksort($shopSortArrays);//排序$shopArray = array(); foreach ($shopSortArrays as $key => $value) {  $shopArray[] =  array("title" => $value["Title"],"description" => $value["Description"],"pic" => $value["PicUrl"],"url" => $value["Url"],);if (count($shopArray) > 6){break;}}return $shopArray;
}

function getDistance($lat_a, $lng_a, $lat_b, $lng_b) {//R是地球半径（米）$R = 6366000;$pk = doubleval(180 / 3.14169);$a1 = doubleval($lat_a / $pk);$a2 = doubleval($lng_a / $pk);$b1 = doubleval($lat_b / $pk);$b2 = doubleval($lng_b / $pk);$t1 = doubleval(cos($a1) * cos($a2) * cos($b1) * cos($b2));$t2 = doubleval(cos($a1) * sin($a2) * cos($b1) * sin($b2));$t3 = doubleval(sin($a1) * sin($b1));$tt = doubleval(acos($t1 + $t2 + $t3));return round($R * $tt);
}

function searchUserLocation($userWxid)
{Global $mysql_host;Global $mysql_host_s;Global $mysql_port;Global $mysql_user;Global $mysql_password;Global $mysql_database;//查询使用从库，支持SAE$mysql_table = "location";$mysql_state = "SELECT * FROM ".$mysql_table." WHERE userWxid = \"".$userWxid."\"";$con = mysql_connect($mysql_host.':'.$mysql_port, $mysql_user, $mysql_password);if (!$con){die('Could not connect: ' . mysql_error());}mysql_query("SET NAMES 'UTF8'");mysql_select_db($mysql_database, $con);$result = mysql_query($mysql_state);$location = array(); while($row = mysql_fetch_array($result)){$location["x"] = $row["locationX"]; $location["y"] = $row["locationY"]; }mysql_close($con);if (isset($location["x"]) && $location["x"] != 0.0){return $location;}else{return "系统中没有你的地理位置信息，请先发送位置给我！您不用担心你的行踪被泄漏，因为你可以滑动地图，把别处的地址发送过来。";}}

function updateOrInsert($weixinid, $locationX, $locationY)
{    if (isset($_SERVER['HTTP_APPNAME'])){$mysql_host = SAE_MYSQL_HOST_M;$mysql_host_s = SAE_MYSQL_HOST_S;  //sae的从库$mysql_port = SAE_MYSQL_PORT;$mysql_user = SAE_MYSQL_USER;$mysql_password = SAE_MYSQL_PASS;$mysql_database = SAE_MYSQL_DB;}else{$mysql_host = "127.0.0.1";$mysql_host_s = "127.0.0.1";$mysql_port = "3306";$mysql_user = "root";$mysql_password = "root";$mysql_database = "sae";}$mysql_table = "location";//INSERT INTO location VALUES("23s2s", 1122.2, 366.2) ON DUPLICATE KEY UPDATE locationX = 1122.2, locationY = 366.2;$mysql_state = "INSERT INTO ".$mysql_table." VALUES(\"".$weixinid."\", ".$locationX.", ".$locationY.") ON DUPLICATE KEY UPDATE locationX = ".$locationX.", locationY = ".$locationY.";";var_dump($mysql_state);//
    $con = mysql_connect($mysql_host.':'.$mysql_port, $mysql_user, $mysql_password);if (!$con){die('Could not connect: ' . mysql_error());}mysql_query("SET NAMES 'UTF8'");mysql_select_db($mysql_database, $con);$result = mysql_query($mysql_state);if ($result == true){//return "你提交的位置为纬度:".$locationX."，经度:".$locationY."。\n现在可以发送“附近”加关键字的命令查询附近的目标，如“附近酒店”，“附近医院”。";return "已经成功获取你的位置。您不用担心你的行踪被泄漏，因为你可以把千里之外的地址提交过来。\n现在可以发送“附近”加关键字的命令查询附近的目标，如“附近酒店”，“附近医院”。";}else{return "提交失败，请重试。如果一直出现这样的错误，请给我们留言。";}
}